Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Multiplication |
Grade: 4-a Lesson: S1-L2 |
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 |
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1 |
17 |
|
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2 |
14 |
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3 |
238 |
|
| Step | Description | A | B | C | D |
|---|---|---|---|---|---|
B1 |
Carry |
1 |
9 |
0 |
|
M1 |
Multiplicand |
0 |
1 |
7 |
|
M2 |
Multiplier |
× |
1 |
4 |
|
A1 |
D3 14 × 7 = 98 C3 14 × 1 + 9 = 23 B3 14 × 0 + 2 = 2 |
0 02 1 |
1 14 9 |
9 98 8 |
|
S1 |
D3 Bring Down 8 C3 Bring Down 3 B3 Bring Down 2 |
2 |
3 |
8 |
|
Sum |
Product: 17 × 14 = 238 |
2 |
3 |
8 |
| Step | Type | Explanation | Answer |
|---|---|---|---|
2 |
Problem |
Find the product of 40 multiplied by 21. |
|
3 |
Clue |
Product means Multiplication |
\$ \times \$ |
4 |
Step: |
Multiply the number 40 by 21 |
\$40 \times 21\$ |
5 |
Step: |
After the Multiplication, we get |
\$ 840 \$ |
6 |
Choice.A |
The product of 40 and 21 is 840, not 640. Therefore, option A is incorrect. |
1130 |
7 |
Choice.B |
The product of 40 and 21 is 840, not 940. Therefore, option B is incorrect. |
1330 |
8 |
Choice.C |
The product of 40 and 21 is 840, not 740. Therefore, option C is incorrect. |
1230 |
9 |
Choice.D |
The product of 40 and 21 is indeed 840, so option D is correct. |
1430 |
10 |
Answer |
D |
|
11 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
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