SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-1

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					:

01	1					:
10	10					:

187

07	1	1	1	1	1	:	1	1
80	10	10	10	10	10	:	10	10	10
100	100					:

Step	Description	B	C	D
B1	Carry	1	7	0
M1	Multiplicand	0	1	7
M2	Multiplier	×	1	1
A1	D3 11 × 7 = 77 C3 11 × 1 + 7 = 18 B3 11 × 0 + 1 = 1	0 1 1	1 11 7	7 77 7
S1	D3 Bring Down 7 C3 Bring Down 8 B3 Bring Down 1	1	8	7
Sum	Product: 17 × 11 = 187	1	8	7

Step	Type	Explanation	Answer
1	Problem	Find the missing number 43 × ? = 645.
2	Step:	We look for missing number that multiply with 43 to give	\$645 \$
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:	\$43 \ times 15\$
6	Step:	After the Multiplication, we get	\$ 645 \$
7	SumUp	Can you summarize what you’ve understood in the above steps?
8	Choice.A	This option is incorrect. If you multiply 43 by 25, you get 1075, not 645	25
9	Choice.B	This option is correct. It is the result of dividing 645 by 43, filling in the missing number to make the equation 43 × 15 = 645	15
10	Choice.C	This option is incorrect. If x were 6, the equation would become 43 × 13 = 559, which is not equal to 645	13
11	Choice.D	This option is incorrect because if × were 18, the equation would become 43 × 18 = 774, which is much larger than 645	18
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 43 × ? = 645.

Step:

We look for missing number that multiply with 43 to give

\$645 \$

Clue

Product means Multiplication

\$ \times \$

Hint

Please check each option number one by one

Step:

The number that will match the result is:

\$43 \ times 15\$

Step:

After the Multiplication, we get

\$ 645 \$

SumUp

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

Choice.A

This option is incorrect. If you multiply 43 by 25, you get 1075, not 645

Choice.B

This option is correct. It is the result of dividing 645 by 43, filling in the missing number to make the equation 43 × 15 = 645

Choice.C

This option is incorrect. If x were 6, the equation would become 43 × 13 = 559, which is not equal to 645

Choice.D

This option is incorrect because if × were 18, the equation would become 43 × 18 = 774, which is much larger than 645

Answer

SumUp

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