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Lesson Example Discussion s1 s2 s3 s4 s5 Quiz: Class Homework

Step-4

Title: Addition

Grade: 2-a Lesson: S2-L7

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.

Lesson Steps

Step

Value

Image

1

449

09

1

1

1

1

1

:

1

1

1

1

40

10

10

10

10

:

400

100

100

100

100

:

2

39

09

1

1

1

1

1

:

1

1

1

1

30

10

10

10

:

3

488

08

1

1

1

1

1

:

1

1

1

80

10

10

10

10

10

:

10

10

10

400

100

100

100

100

:
Step Description A B C D

B1

Carry

0

1

0

M1

Addend

4

4

9

M2

Addend

+

3

9

A1

D3 9 + 9 = 18 C3 4 + 3 + 1 = 8 B3 4 + 0 = 4

4 4

0 8 8

1 18 8

S1

D3 Bring Down 8 C3 Bring Down 8 B3 Bring Down 4

4

8

8

Sum

Sum: 449 + 39 = 488

4

8

8
Step Type Explanation Answer

2

Problem

The given problem is

449 and 39

3

Clue

And means Addition

+

4

Step

Add the numbers

449 + 39

5

Step

After the addition or simplification we get

488

6

Answer

D

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