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Lesson Topics Discussion Quiz: Class Homework

Steps-4

Title: Multiplication

Grade 4+ Lesson s3-l2

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

Quiz: Discussion Step

Discussion: Steps1 Steps2 Steps3 Steps4 Steps5

sbMath-row-a-ones-image100 = {sbMath-row-a-ones-image100}

Step

Value

Image

1

128
Factor

08

1

1

1

1

1

:

1

1

1

20

10

10

:

100

100

:

2

7
Factor

07

1

1

1

1

1

:

1

1

3

896
Product

06

1

1

1

1

1

:

1

90

10

10

10

10

10

:

10

10

10

10

800

100

100

100

100

100

:

100

100

100
Step Description A B C D

B1

Carry

5

M1

Multiplicand

1

2

8

M2

Multiplier

×

0

7

A1

D3 7 × 8 = 56 C3 7 × 2 + 5 = 19 B3 7 × 1 + 1 = 8

7 1

1 14 5

5 56 6

S1

D3 Bring Down 6 C3 Bring Down 9 B3 Bring Down 8

8

9

6

Sum

Product: 128 x 7 = 876

8

9

6
Id Type Name Note

1

Problem

Calculate the result of 128 times 7.

2

Clue

Times means Multiplication
\$\times\$

3

Step

Multiply the number 128 by 7

\$128 times 7\$

4

Step

After the multiplication, we get

896.00

5

Sumup

Please summarize steps

Choices

6

Choice-A

This value is far less than the actual product — it might come from a much smaller multiplication

Wrong 420

7

Choice-B

This number is also much smaller than 896, so it does not match the result

Wrong 531

8

Choice-C

Although this is closer, it is still 134 less than the correct product, so it’s incorrect

Wrong 762

9

Choice-D

This is correct because 128 multiplied by 7 equals exactly 896

Correct 896

10

Answer

Option

D

11

Sumup

Please summarize choices

Discussion: Steps1 Steps2 Steps3 Steps4 Steps5

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