SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Multiplication

Grade: 3-a Lesson: S3-L6

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

07	1	1	1	1	1	:	1	1
10	10					:

05	1	1	1	1	1	:
10	10					:

255

05	1	1	1	1	1	:
50	10	10	10	10	10	:
200	₁₀₀	₁₀₀				:

Step	Description	B	C	D
B1	Carry	2	10	0
M1	Multiplicand	0	1	7
M2	Multiplier	×	1	5
A1	D3 15 × 7 = 105 C3 15 × 1 + 10 = 25 B3 15 × 0 + 2 = 2	0 2 2	2 10 10	10 105 5
S1	D3 Bring Down 5 C3 Bring Down 5 B3 Bring Down 2	2	5	5
Sum	Product: 17 × 15 = 255	2	5	5

Step	Type	Explanation	Answer
1	Problem	Find the missing number 44 × 21 = ?.
2	Clue	Product means Multiplication	\$ \times \$
3	Step:	multiply the number 44 with 21	\$44 \times 21\$
4	Step:	After the Multiplication, we get	\$ 924 \$
5	SumUp	Can you summarize what you’ve understood in the above steps?
6	Choice.A	This option is incorrect because it doesn’t consider the correct multiplication of the one digit of 44 by 21	922
7	Choice.B	The product of these factors is 44 × 21 = 924, which is not equal to 942. Thus, option a is incorrect	942
8	Choice.C	The product of these factors is 44 × 21 = 924, which matches the desired result. Hence, this is the correct answer	924
9	Choice.D	The product of these factors is 44 × 21 = 924, which is not equal to 921. Thus, option d is incorrect	921
10		Answer	C
11	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the missing number 44 × 21 = ?.

Clue

Product means Multiplication

\$ \times \$

Step:

multiply the number 44 with 21

\$44 \times 21\$

Step:

After the Multiplication, we get

\$ 924 \$

SumUp

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

Choice.A

This option is incorrect because it doesn’t consider the correct multiplication of the one digit of 44 by 21

922

Choice.B

The product of these factors is 44 × 21 = 924, which is not equal to 942. Thus, option a is incorrect

942

Choice.C

The product of these factors is 44 × 21 = 924, which matches the desired result. Hence, this is the correct answer

924

Choice.D

The product of these factors is 44 × 21 = 924, which is not equal to 921. Thus, option d is incorrect

921

Answer

SumUp

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