SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Multiplication

Grade: 3-a Lesson: S4-L7

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
20	10	10				:

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

486

06	1	1	1	1	1	:	1
80	10	10	10	10	10	:	10	10	10
400	₁₀₀	₁₀₀	₁₀₀	₁₀₀		:

Step	Description	B	C	D
B1	Carry	4	12	0
M1	Multiplicand	0	2	7
M2	Multiplier	×	1	8
A1	D3 18 × 7 = 126 C3 18 × 2 + 12 = 48 B3 18 × 0 + 4 = 4	0 4 4	4 36 12	12 126 6
S1	D3 Bring Down 6 C3 Bring Down 8 B3 Bring Down 4	4	8	6
Sum	Product: 27 × 18 = 486	4	8	6

Step	Type	Explanation	Answer
1	Problem	Find the missing number 135 × ? = 945.
2	Step:	We look for missing number that multiply with 135 to give	945
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:	\$135 \ times 7\$
6	Step:	After the Multiplication, we get	\$ 945 \$
7	SumUp	Can you summarize what you’ve understood in the above steps?
8	Choice.A	This option is incorrect. If you multiply 135 by 6, you get 945, not 810	6
9	Choice.B	This option is correct. It is the result of dividing 945 by 135, filling in the missing number to make the equation 135 × 7 = 945	7
10	Choice.C	This option is incorrect. If x were 6, the equation would become 135 × 675 = 826, which is not equal to 945	5
11	Choice.D	This option is incorrect because 135 × 9 = 1215, which is much larger than 945	9
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 135 × ? = 945.

Step:

We look for missing number that multiply with 135 to give

945

Clue

Product means Multiplication

\$ \times \$

Hint

Please check each option number one by one.

Step:

The number that will match the result is:

\$135 \ times 7\$

Step:

After the Multiplication, we get

\$ 945 \$

SumUp

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

Choice.A

This option is incorrect. If you multiply 135 by 6, you get 945, not 810

Choice.B

This option is correct. It is the result of dividing 945 by 135, filling in the missing number to make the equation 135 × 7 = 945

Choice.C

This option is incorrect. If x were 6, the equation would become 135 × 675 = 826, which is not equal to 945

Choice.D

This option is incorrect because 135 × 9 = 1215, which is much larger than 945

Answer

SumUp

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