Step-2

Title: Decimals

Grade: 5-a Lesson: S1-L2

Explanation: Hello Students, time to practice and review the steps. Let us take next 2-5 minutes to solve the steps for the problems. This is a good exercise to check your understanding of the concepts.Second student to identify and review important steps.Focus on understanding the concepts and application to solving problems step by step.

Discussion: Step1 Step2 Step3 Step4 Step5 Lesson Steps

Step Type Explanation Answer

1

Problem

Subtraction of Decimals 340.7-220

2

Step

Subtract the given decimals.

340.7-220

3

Step

The numbers are first padded with zero. Subtract each column starting from the rightmost column, moving towards the left.

4

Clue

Position the smaller number below the greater number. If necessary, borrow from the next column to the left.

5

Step

After subtracting all the columns, obtain the final result.

340.7-220.0=120.7

6

Answer

Option

B

7

Sumup

Can you summarize what you’ve understood in the above steps?

8

Choice.A

This option is incorrect because it is not the correct result. Subtracting 220.0 from 340.7 results in 120.7, not 130.4

130.4

9

Choice.B

This is the correct result. Subtracting 220.0 from 340.7 results in 120.7

120.7

10

Choice.C

This option is incorrect because it is not the correct result. Subtracting 220.0 from 340.7 results in 120.7, not 110.2

110.2

11

Choice.D

This option is incorrect because it is not the correct result. Subtracting 220.0 from 340.7 results in 120.7, not 150.6

150.6

12

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5


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