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Lesson Table Topics Discussion Quiz: Class Homework

Steps-4

Title: Multiplication

Grade 4+ Lesson s1-l7

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-image5 = {sbMath-row-a-ones-image5}

Step

Value

Image

1

45
Factor

05

1

1

1

1

1

:

40

10

10

10

10

:

2

28
Factor

08

1

1

1

1

1

:

1

1

1

20

10

10

:

3

1260
Product

60

10

10

10

10

10

:

10

200

100

100

:

1000

1000

:
Step Description A B C D

B1

Carry

12

14

0

M1

Multiplicand

0

4

5

M2

Multiplier

×

2

8

A1

D3 28 × 5 = 120 C3 28 × 4 + 12 = 126 B3 28 × 0 + 12 = 12

00 12

12 112 14

14 140 0

S1

D3 Bring Down 0 C3 Bring Down 6 B3 Bring Down 12

12

6

0

Sum

Product: 45 x 28 = 1260.

1

2

6

0
Id Type Name Note

1

Problem

Find the product of 45 and 28.

2

Step

Product means Multiplication.
\$\times\$

3

Clue

Multiply the number 45 with 28

4

Step

After the multiplication and we get

1,260.00

5

Sumup

Please summarize steps

Choices

5

Choice-A

The product of 45 and 28 is 1260 and not 1290. Therefore and option A is incorrect

Wrong 1290

6

Choice-B

The product of 45 and 28 is 1260 and not 1280. Therefore and option B is incorrect

Wrong 1280

7

Choice-C

The product of 45 and 28 is 1260 and not 1290. Therefore and option C is incorrect

Wrong 1270

8

Choice-D

The product of 45 and 28 is indeed 1260 and so option D is correct

Correct 1260

9

Answer

Option

D

10

Sumup

Please summarize choices

Discussion: Steps1 Steps2 Steps3 Steps4 Steps5

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