Lesson Example Discussion Quiz: Class Homework |
Step-4 |
Title: Multiplication |
Grade: 3-a Lesson: S2-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
Step |
Value |
Image |
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1 |
31 |
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2 |
5 |
|
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3 |
155 |
|
| Step | Description | A | B | C | D |
|---|---|---|---|---|---|
B1 |
Carry |
1 |
0 |
0 |
|
M1 |
Multiplicand |
0 |
3 |
1 |
|
M2 |
Multiplier |
× |
0 |
5 |
|
A1 |
D3 5 × 1 = 5 C3 5 × 3 = 15 B3 5 × 0 + 1 = 1 |
0 1 1 |
1 15 5 |
0 5 5 |
|
S1 |
D3 Bring Down 5 C3 Bring Down 5 B3 Bring Down 1 |
1 |
5 |
5 |
|
Sum |
Product: 31 × 5 = 155 |
1 |
5 |
5 |
| Step | Type | Explanation | Answer |
|---|---|---|---|
2 |
Problem |
By multiplying which factors the result will be 255. |
|
3 |
Step: |
We look for pairs of numbers that multiply together to give |
225 |
4 |
Clue |
Product means Multiplication |
\$ \times \$ |
5 |
Step: |
Multiply the number 17 by 15 |
\$17\ times 15\$ |
6 |
Step: |
After the multiplication, we get |
\$ 255 \$ |
7 |
Choice.A |
This option is correct because it matches the calculated result of multiplying 17 and 15 |
17 x 15 |
8 |
Choice.B |
This option is incorrect because it does not match the correct calculation |
18 x 15 |
9 |
Choice.C |
This option is incorrect. If you calculate 17 × 15, you get 255, not 285 |
19 x 15 |
10 |
Choice.D |
The option is incorrect. When you calculate 17 multiplied by 15, the result is 285 instead of 360 |
18 x 20 |
11 |
Answer |
A |
|
12 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
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