Math Example--Decimal Concepts--Subtracting Decimals: Example 2

Topic

Decimals

Description

This example illustrates the process of subtracting decimals using column subtraction. The problem presented is 1.7 - 1.5. The solution emphasizes the importance of aligning decimal points when performing the subtraction. By following this method, students can easily solve the problem and arrive at the correct answer of 0.2.

Subtracting decimals is an essential skill in mathematics that builds upon students' understanding of place value and basic arithmetic operations. This collection of examples helps teach the topic by providing clear, step-by-step visual representations of the subtraction process. Students can observe how to align decimal points, perform the subtraction column by column, and handle cases where regrouping may be necessary.

Offering multiple worked-out examples is vital for students to fully comprehend the concept of decimal subtraction. Each example in this collection showcases different scenarios, from simple subtractions to more complex ones involving regrouping. By exposing students to various problem types, they can develop a comprehensive understanding of the process and gain confidence in their ability to subtract decimals accurately.

Teacher's Script: Let's look at our second example of subtracting decimals. We have 1.7 minus 1.5. Remember, when subtracting decimals, it's crucial to line up the decimal points. This ensures we're subtracting ones from ones, tenths from tenths, and so on. Let's subtract column by column, starting from the right. 7 tenths minus 5 tenths equals 2 tenths. In the ones column, 1 minus 1 equals 0. So, our final answer is 0.2. Always double-check your work by making sure the decimal point is in the correct place in your answer.

For a complete collection of math examples related to Subtract Decimals click on this link: Math Examples: Subtracting Decimals Collection.