Step-2

Title: Addition

Grade: 2-a Lesson: S1-L5

Explanation: Let us verify the answer here with the steps.

Description:

Step Type Explanation Answer

1

Problem

The length of the red wire is 23 cm, and the length of the blue wire is 19 cm.

Find the sum of the lengths of red and blue wires.

2

Clue

Sum implies adding up

Addition

3

Hint

Operator used : Addition

+

4

Step

Length of red wire

\$23\$ cm

5

Step

Length of blue wire

\$19\$ cm

6

Step

sum of the lengths of the two wires

23 + 19

7

=

\$42\$

8

Step

Hence, the sum of the length of the wires is

\$42\$ cm

9

SumUp

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

10

Choice.A

This is correct.The sum of 23 and 19 is 42.

42

11

Choice.B

This is not correct. The sum of 23 and 19 is 42, not 46.

46

12

Choice.C

This is not correct. The sum of 23 and 19 is 42, not 85.

85

13

Choice.D

This is not correct. The sum of 23 and 19 is 42, not 90.

90

14

Answer

Option

A

15

SumUp

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


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