SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Multiplication

Grade: 3-a Lesson: S3-L8

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

09	1	1	1	1	1	:	1	1	1	1
10	10					:

05	1	1	1	1	1	:
10	10					:

285

05	1	1	1	1	1	:
80	10	10	10	10	10	:	10	10	10
200	₁₀₀	₁₀₀				:

Step	Description	B	C	D
B1	Carry	2	13	0
M1	Multiplicand	0	1	9
M2	Multiplier	×	1	5
A1	D3 15 × 9 = 135 C3 15 × 1 + 13 = 28 B3 15 × 0 + 2 = 2	0 2 2	2 15 13	13 135 5
S1	D3 Bring Down 5 C3 Bring Down 8 B3 Bring Down 2	2	8	5
Sum	Product: 19 × 15 = 285	2	8	5

Step	Type	Explanation	Answer
1	Problem	Find the missing number 49 × 23 = ?
2	Clue	Product means Multiplication	\$ \times \$
3	Step:	multiply the number 49 with 6	\$49 \times 23\$
4	Step:	After the Multiplication, we get	\$ 1127 \$
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 49 by 23	1125
7	Choice.B	The product of these factors is 49 × 23 = 1127, which is not equal to 1217. Thus, option a is incorrect	1217
8	Choice.C	The product of these factors is 49 × 23 = 1127, which matches the desired result. Hence, this is the correct answer	1127
9	Choice.D	The product of these factors is 49 × 23 = 1127, which is not equal to 1128. Thus, option d is incorrect	1128
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 49 × 23 = ?

Clue

Product means Multiplication

\$ \times \$

Step:

multiply the number 49 with 6

\$49 \times 23\$

Step:

After the Multiplication, we get

\$ 1127 \$

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 49 by 23

1125

Choice.B

The product of these factors is 49 × 23 = 1127, which is not equal to 1217. Thus, option a is incorrect

1217

Choice.C

The product of these factors is 49 × 23 = 1127, which matches the desired result. Hence, this is the correct answer

1127

Choice.D

The product of these factors is 49 × 23 = 1127, which is not equal to 1128. Thus, option d is incorrect

1128

Answer

SumUp

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