SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-5

Title: Multiplication

Grade: 3-a Lesson: S2-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.

Discussion: Step1 Step2 Step3 Step4 Step5

Lesson Steps

Step

Value

Image

09	1	1	1	1	1	:	1	1	1	1
30	10	10	10			:

351

01	1					:
50	10	10	10	10	10	:
300	₁₀₀	₁₀₀	₁₀₀			:

Step	Description	B	C	D
B1	Carry	3	8	0
M1	Multiplicand	0	3	9
M2	Multiplier	×	0	9
A1	D3 9 × 9 = 81 C3 9 × 3 + 8 = 35 B3 9 × 0 + 3 = 3	0 3 3	3 27 8	8 81 1
S1	D3 Bring Down 0 C3 Bring Down 2 B3 Bring Down 3	3	5	1
Sum	Product: 39 × 9 = 351	3	5	1

Step	Type	Explanation	Answer
1	Problem	Is the product of 29 and 30 equal to 890?
2	Clue	Product means Multiplication	\$ \times \$
3	Step:	Multiply the number 29 by 30	\$29 \times 30\$
4	Step:	After the multiplication, we get	\$ 870 \$
5	Step:	Hence, it is not proved that the product of 29 and 30 is equal to 890.
6	Choice.A	This option is correct. The calculated result of multiplying 29 and 30 is 870, not 890	No
7	Choice.B	This option is incorrect. The calculated result is 870, not 890	Yes
8	Choice.C	This option is incorrect. Since Option A is correct, it cannot be both "No" and "Yes" at the same time	Both A & B
9	Choice.D	This option is incorrect. Option A is correct, so it cannot be "None"	None
10		Answer	D
11	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Is the product of 29 and 30 equal to 890?

Clue

Product means Multiplication

\$ \times \$

Step:

Multiply the number 29 by 30

\$29 \times 30\$

Step:

After the multiplication, we get

\$ 870 \$

Step:

Hence, it is not proved that the product of 29 and 30 is equal to 890.

Choice.A

This option is correct. The calculated result of multiplying 29 and 30 is 870, not 890

Choice.B

This option is incorrect. The calculated result is 870, not 890

Yes

Choice.C

This option is incorrect. Since Option A is correct, it cannot be both "No" and "Yes" at the same time

Both A & B

Choice.D

This option is incorrect. Option A is correct, so it cannot be "None"

None

Answer

SumUp

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

Discussion: Step1 Step2 Step3 Step4 Step5