SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Multiplication

Grade: 4-a Lesson: S2-L4

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.

Discussion: Step1 Step2 Step3 Step4 Step5

Lesson Steps

Step

Value

Image

05	1	1	1	1	1	:
10	10					:

08	1	1	1	1	1	:	1	1	1
20	10	10				:

420

400

₁₀₀

Step	Description	B	C	D
B1	Carry	2	14	0
M1	Multiplicand	0	1	5
M2	Multiplier	×	2	8
A1	D3 28 × 5 = 140 C3 28 × 1 + 14 = 42 B3 28 × 0 + 4 = 4	0 04 2	2 28 14	14 140 0
S1	D3 Bring Down 0 C3 Bring Down 2 B3 Bring Down 4	4	2	0
Sum	Product: 15 × 28 = 420	4	2	0

Step	Type	Explanation	Answer
2	Problem	Find the product of 55 multiplied by 21.
3	Clue	Product means Multiplication	\$ \times \$
4	Step:	Multiply the number 55 by 21	\$55 \times 21\$
5	Step:	After the multiplication, we get	\$ 1155\$
6	Choice.A	This is incorrect, as it is not the correct product of 55 and 21	1145
7	Choice.B	This is the correct answer, as it accurately represents the product of 55 and 21	1155
8	Choice.C	This is incorrect, as it is not the correct product of 55 and 21	1165
9	Choice.D	This is incorrect, as it is not the correct product of 55 and 21	1175
10	Answer	Option	B
11	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the product of 55 multiplied by 21.

Clue

Product means Multiplication

\$ \times \$

Step:

Multiply the number 55 by 21

\$55 \times 21\$

Step:

After the multiplication, we get

\$ 1155\$

Choice.A

This is incorrect, as it is not the correct product of 55 and 21

1145

Choice.B

This is the correct answer, as it accurately represents the product of 55 and 21

1155

Choice.C

This is incorrect, as it is not the correct product of 55 and 21

1165

Choice.D

This is incorrect, as it is not the correct product of 55 and 21

1175

Answer

Option

SumUp

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

Discussion: Step1 Step2 Step3 Step4 Step5