These are the resources that support this North Carolina Standard.
NC.1.OA.1 - Represent and solve addition and subtraction word problems, within 20, with unknowns, by using objects, drawings, and equations with a symbol for the unknown number to represent the problem, when solving: Add to/Take from-Change Unknown Put together/Take Apart-Addend Unknown Compare-Difference Unknown
Displaying 101 - 150 of 341 resources:
| Thumbnail Image | Title | Description | Curriculum Nodes |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 28 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 28
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 29 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 29
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 3 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 3
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 30 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 30
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 31 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 31
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 32 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 32
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 33 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 33
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 34 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 34
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 4 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 4
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 5 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 5
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 6 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 6
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 7 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 7
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 8 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 8
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 9 |
Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 9
This is part of a collection of math examples that focus on addition, subtraction, multiplication, and division skills. |
Addition Facts to 25 |
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Math Video Definition 1--Addition and Subtraction Concepts--Addend |
Math Video Definition 1--Addition and Subtraction Concepts--Addend This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elementary |
Addition Expressions and Equations |
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Math Video Definition 1--Addition and Subtraction Concepts--Addend (Spanish Audio) |
Math Video Definition 1--Addition and Subtraction Concepts--Addend (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an e |
Addition Expressions and Equations |
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Math Video Definition 10--Addition and Subtraction Concepts--Commutative Property |
Math Video Definition 10--Addition and Subtraction Concepts--Commutative Property This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an ea |
Addition Expressions and Equations |
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Math Video Definition 10--Addition and Subtraction Concepts--Commutative Property (Spanish Audio) |
Math Video Definition 10--Addition and Subtraction Concepts--Commutative Property (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal |
Addition Expressions and Equations |
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Math Video Definition 11--Addition and Subtraction Concepts--Counting |
Math Video Definition 11--Addition and Subtraction Concepts--Counting This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elementa |
Addition Expressions and Equations |
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Math Video Definition 11--Addition and Subtraction Concepts--Counting (Spanish Audio) |
Math Video Definition 11--Addition and Subtraction Concepts--Counting (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in a |
Addition Expressions and Equations |
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Math Video Definition 12--Addition and Subtraction Concepts--Counting On |
Math Video Definition 12--Addition and Subtraction Concepts--Counting On This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early eleme |
Addition Expressions and Equations |
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Math Video Definition 12--Addition and Subtraction Concepts--Counting On (Spanish Audio) |
Math Video Definition 12--Addition and Subtraction Concepts--Counting On (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use i |
Addition Expressions and Equations |
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Math Video Definition 13--Addition and Subtraction Concepts--Difference |
Math Video Definition 13--Addition and Subtraction Concepts--Difference This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elemen |
Addition Expressions and Equations |
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Math Video Definition 13--Addition and Subtraction Concepts--Difference (Spanish Audio) |
Math Video Definition 13--Addition and Subtraction Concepts--Difference (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in |
Addition Expressions and Equations |
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Math Video Definition 14--Addition and Subtraction Concepts--Equals Sign |
Math Video Definition 14--Addition and Subtraction Concepts--Equals Sign This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early eleme |
Addition Expressions and Equations |
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Math Video Definition 14--Addition and Subtraction Concepts--Equals Sign (Spanish Audio) |
Math Video Definition 14--Addition and Subtraction Concepts--Equals Sign (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use i |
Addition Expressions and Equations |
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Math Video Definition 15--Addition and Subtraction Concepts--Estimation |
Math Video Definition 15--Addition and Subtraction Concepts--Estimation This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elemen |
Addition Expressions and Equations |
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Math Video Definition 15--Addition and Subtraction Concepts--Estimation (Spanish Audio) |
Math Video Definition 15--Addition and Subtraction Concepts--Estimation (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in |
Addition Expressions and Equations |
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Math Video Definition 16--Addition and Subtraction Concepts--Even Number |
Math Video Definition 16--Addition and Subtraction Concepts--Even Number This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early eleme |
Addition Expressions and Equations |
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Math Video Definition 16--Addition and Subtraction Concepts--Even Number (Spanish Audio) |
Math Video Definition 16--Addition and Subtraction Concepts--Even Number (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use i |
Addition Expressions and Equations |
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Math Video Definition 17--Addition and Subtraction Concepts--Fact Family |
Math Video Definition 17--Addition and Subtraction Concepts--Fact Family This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early eleme |
Addition Expressions and Equations |
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Math Video Definition 17--Addition and Subtraction Concepts--Fact Family (Spanish Audio) |
Math Video Definition 17--Addition and Subtraction Concepts--Fact Family (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use i |
Addition Expressions and Equations |
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Math Video Definition 18--Addition and Subtraction Concepts--Fact Fluency |
Math Video Definition 18--Addition and Subtraction Concepts--Fact Fluency This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elem |
Addition Expressions and Equations |
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Math Video Definition 18--Addition and Subtraction Concepts--Fact Fluency (Spanish Audio) |
Math Video Definition 18--Addition and Subtraction Concepts--Fact Fluency (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use |
Addition Expressions and Equations |
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Math Video Definition 19--Addition and Subtraction Concepts--False Equation |
Math Video Definition 19--Addition and Subtraction Concepts--False Equation This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early el |
Addition Expressions and Equations |
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Math Video Definition 19--Addition and Subtraction Concepts--False Equation (Spanish Audio) |
Math Video Definition 19--Addition and Subtraction Concepts--False Equation (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for us |
Addition Expressions and Equations |
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Math Video Definition 2--Addition and Subtraction Concepts--Adding |
Math Video Definition 2--Addition and Subtraction Concepts--Adding This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elementary |
Addition Expressions and Equations |
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Math Video Definition 2--Addition and Subtraction Concepts--Adding (Spanish Audio) |
Math Video Definition 2--Addition and Subtraction Concepts--Adding (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an e |
Addition Expressions and Equations |
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Math Video Definition 20--Addition and Subtraction Concepts--Hundreds Place |
Math Video Definition 20--Addition and Subtraction Concepts--Hundreds Place This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early el |
Addition Expressions and Equations |
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Math Video Definition 20--Addition and Subtraction Concepts--Hundreds Place (Spanish Audio) |
Math Video Definition 20--Addition and Subtraction Concepts--Hundreds Place (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for us |
Addition Expressions and Equations |
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Math Video Definition 21--Addition and Subtraction Concepts--Identity Property of Addition |
Math Video Definition 21--Addition and Subtraction Concepts--Identity Property of Addition This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use |
Addition Expressions and Equations |
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Math Video Definition 21--Addition and Subtraction Concepts--Identity Property of Addition (Spanish Audio) |
Math Video Definition 21--Addition and Subtraction Concepts--Identity Property of Addition (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtractio |
Addition Expressions and Equations |
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Math Video Definition 22--Addition and Subtraction Concepts--Identity Property of Subtraction |
Math Video Definition 22--Addition and Subtraction Concepts--Identity Property of Subtraction This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for |
Addition Expressions and Equations |
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Math Video Definition 22--Addition and Subtraction Concepts--Identity Property of Subtraction (Spanish Audio) |
Math Video Definition 22--Addition and Subtraction Concepts--Identity Property of Subtraction (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtrac |
Addition Expressions and Equations |
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Math Video Definition 23--Addition and Subtraction Concepts--Inverse Operations |
Math Video Definition 23--Addition and Subtraction Concepts--Inverse Operations This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an earl |
Addition Expressions and Equations |
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Math Video Definition 23--Addition and Subtraction Concepts--Inverse Operations (Spanish Audio) |
Math Video Definition 23--Addition and Subtraction Concepts--Inverse Operations (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal fo |
Addition Expressions and Equations |
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Math Video Definition 24--Addition and Subtraction Concepts--Inverse Relationship |
Math Video Definition 24--Addition and Subtraction Concepts--Inverse Relationship This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an ea |
Addition Expressions and Equations |
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Math Video Definition 24--Addition and Subtraction Concepts--Inverse Relationship (Spanish Audio) |
Math Video Definition 24--Addition and Subtraction Concepts--Inverse Relationship (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal |
Addition Expressions and Equations |
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Math Video Definition 25--Addition and Subtraction Concepts--Joining |
Math Video Definition 25--Addition and Subtraction Concepts--Joining This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an early elementar |
Addition Expressions and Equations |
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Math Video Definition 25--Addition and Subtraction Concepts--Joining (Spanish Audio) |
Math Video Definition 25--Addition and Subtraction Concepts--Joining (Spanish Audio) This is part of a collection of math video definitions related to the topics of Addition and Subtraction, ideal for use in an |
Addition Expressions and Equations |
