Step-3

Title: Addition of decimals

Grade: 4-a Lesson: S1-L2

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Add the decimals given below
\$ 24 + 0.77\$.

2

Step

Align the decimal numbers according to their place values:

\$24\$
\$ + 0.77\$

3

Step

Both numbers have different decimal digits after the decimal point, so we can add a zero to the right of 24 to make it 24.00 if needed

\$24.00\$
+ \$0.77\$
----------------------
24.77

4

Step

Therefore, the sum of 24 and 0.77 is 24.77.

5

Sumup

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

6

Choice.A

This option doesn’t account for the decimal part of 0.77, so it’s incorrect

25

7

Choice.B

This option incorrectly adds the whole numbers but neglects the correct decimal addition

24.07

8

Choice.C

This option also misses the correct addition of the decimal part (0.77)

24.7

9

Choice.D

This is correct option, as it accurately reflects the addition of 24 and 0.77

24.77

10

Answer

Option

D

11

Sumup

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


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