SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Multiplication

Grade: 3-a Lesson: S3-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.

Lesson Steps

sbMath-row-a-ones-image10 = 5

Step

Value

Image

05	1	1	1	1	1	:
10	10					:

05	1	1	1	1	1	:
70	10	10	10	10	10	:	10	10

Step	Description	A	B
B1	Carry	2	0
M1	Multiplicand	1	5
M2	Multiplier	X	5
A1	B3 5 × 5 = 25 A3 5 × 1 + 2 = 7	0 5 2	2 25 5
S1	B3 Bring Down 5 A3 Bring Down 7	7	5
Sum	Product: 15 × 5 = 75	7	5

Step	Type	Explanation	Answer
1	Problem	Find the missing number 38 × ? = 722.
2	Step:	We look for missing number that multiply with 38 to give	722
3	Clue	Product means Multiplication	\$ \times \$
4	Hint	Please check each option number one by one
5	Step:	The number that will match the result is:	\$38 \ times 19\$
6	Step:	After the Multiplication, we get	\$ 722 \$
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 38 by 18	18
9	Choice.B	This option is correct. It is the result of dividing 722 by 38, filling in the missing number to make the equation 38 × 19 = 722	19
10	Choice.C	This option is incorrect. If you multiply 38 by 21, you get 798, not 722	21
11	Choice.D	This option is incorrect. It’s not the result of multiplying 38 and 23	23
12		Answer	B
13	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the missing number 38 × ? = 722.

Step:

We look for missing number that multiply with 38 to give

722

Clue

Product means Multiplication

\$ \times \$

Hint

Please check each option number one by one

Step:

The number that will match the result is:

\$38 \ times 19\$

Step:

After the Multiplication, we get

\$ 722 \$

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 38 by 18

Choice.B

This option is correct. It is the result of dividing 722 by 38, filling in the missing number to make the equation 38 × 19 = 722

Choice.C

This option is incorrect. If you multiply 38 by 21, you get 798, not 722

Choice.D

This option is incorrect. It’s not the result of multiplying 38 and 23

Answer

SumUp

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