Step-1

Title: Multiplication

Grade: 3-a Lesson: S4-L5

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

21

01

1

:

20

10

10

:

2

16

06

1

1

1

1

1

:

1

10

10

:

3

336

06

1

1

1

1

1

:

1

30

10

10

10

:

300

100

100

100

:

Step Description A B C D

B1

Carry

3

1

0

M1

Multiplicand

0

2

1

M2

Multiplier

×

1

6

A1

D3 16 × 1 = 16 C3 16 × 2 + 1 = 33 B3 16 × 0 + 3 = 3

0 3 3

3 32 1

1 16 6

S1

D3 Bring Down 6 C3 Bring Down 3 B3 Bring Down 3

3

3

6

Sum

Product: 21 × 16 = 336

3

3

6

Step Type Explanation Answer

2

Problem

Find the missing number 121 × 8 =?

3

Step:

The given product is

121, 8

4

Clue

Product means Multiplication

\$ \times \$

5

Step:

The number that will match the result is:

\$121 \ times 8\$

6

Step:

After the Multiplication, we get

\$ 968 \$

7

SumUp

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

8

Choice.A

This option is incorrect because it doesn’t consider the correct multiplication of the one digit of 121 by 8

964

9

Choice.B

The product of these factors is 121 × 8 = 968, which is not equal to 986. Thus, option a is incorrect

986

10

Choice.C

The product of these factors is 121 × 8 = 968, which matches the desired result. Hence, this is the correct answer

968

11

Choice.D

The product of these factors is 121 × 8 = 968, which is not equal to 946. Thus, option d is incorrect

946

12

Answer

C

13

SumUp

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


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