Steps-2 |
|
Title: Multiplication |
Grade 4+ Lesson s1-l2 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Quiz: Discussion Step
Step |
Value |
Image |
||||||||||||||||||||||||
1 |
40 |
|
||||||||||||||||||||||||
2 |
21 |
|
||||||||||||||||||||||||
3 |
840 |
|
| Step | Description | A | B | C | D |
|---|---|---|---|---|---|
B1 |
Carry |
8 |
4 |
0 |
|
M1 |
Multiplicand |
0 |
4 |
0 |
|
M2 |
Multiplier |
× |
2 |
1 |
|
A1 |
D3 21 × 0 = 0 C3 21 × 4 = 84 B3 21 × 0 + 8 = 8 |
0 0 8 |
0 84 4 |
0 0 0 |
|
S1 |
D3 Bring Down 0 C3 Bring Down 4 B3 Bring Down 8 |
8 |
4 |
0 |
|
Sum |
Product: 40 × 21 = 840 |
8 |
4 |
0 |
| Id | Type | Name | Note |
|---|---|---|---|
1 |
Problem |
Calculate the product of 40 and 21. |
|
2 |
Clue |
Product means Multiplication |
|
3 |
Step |
Multiply the number 40 with 21 |
40 × 21 |
4 |
Step |
After the multiplication and we get |
840 |
5 |
Sumup |
Please summarize steps |
|
Choices |
|||
6 |
Choice-A |
The product of 40 and 21 is 840 and not 640. Therefore and option A is incorrect |
Wrong 640 |
7 |
Choice-B |
The product of 40 and 21 is 840 and not 940. Therefore and option B is incorrect |
Wrong 940 |
8 |
Choice-C |
The product of 40 and 21 is 840 and not 740. Therefore and option C is incorrect |
Wrong 740 |
9 |
Choice-D |
The product of 40 and 21 is indeed 840 and so option D is correct |
Correct 840 |
10 |
Answer |
Option |
D |
11 |
Sumup |
Please summarize choices |
|
Copyright © 2020-2024 saibook.us Contact: info@saibook.org Version: 4.0 Built: 24-Sept-2025 12:00PM EST