Step-3

Title: Addition of decimals

Grade: 4-a Lesson: S2-L3

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

Addition of decimals 162.4 + 112.3

2

Hint

Operator used for addition is \$+\$

3

Step

Add the numbers

162.4 + 112.3

4

Step

After the addition we get

274.7

5

Choice.A

This option is incorrect. The sum 162.4+112.3 equals 274.7, not 247.9. This error might have occurred due to an incorrect addition of the tenths or units place.

247.9

6

Choice.B

This sum reflects an incorrect addition of tenths or units, or a misalignment of decimal points

247.4

7

Choice.C

This option is correct because it is the sum of the two numbers.

274.7

8

Choice.D

This option is wrong. There seems to be an error in adding the hundreds, tens, or units, resulting in a total lower than 274.7.

244.7

9

Step

Option

C

10

Sumup

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

Discussion: Step1 Step2 Step3 Step4 Step5


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