Lesson Example Discussion Quiz: Class Homework |
Step-4 |
Title: Decimal Multiplication |
Grade: 4-a Lesson: S2-L5 |
Explanation: Let us verify the answer here with the steps. |
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
A farm has 374.4 hens, and ducks are 2 times the number of hens. How many ducks are there in the farm? |
|
2 |
Clue |
Times implies multiplying |
Multiplication |
3 |
Hint |
Operator used : Multiplication |
x |
4 |
Step |
Number of hens in the farm |
374.4 |
5 |
Step |
Number of ducks in the farm |
Twice the number of hens |
6 |
Step |
Number of ducks in the farm |
2 x 374.4 |
7 |
Step |
= |
\$748.8\$ ducks |
8 |
Step |
Therefore, the number of ducks in the farm |
748.8 ducks |
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
This option is incorrect because it is slightly higher than the correct number of ducks. The exact multiplication of 374.4 hens by 2 gives 748.8, not 750.8 |
750.8 |
11 |
Choice.B |
This is correct. It matches our calculated number of ducks, so this is the correct answer |
748.8 |
12 |
Choice.C |
This option is incorrect because it is much higher than the correct number of ducks. The multiplication of 374.4 hens by 2 results in 748.8, so 760.8 is incorrect |
760.8 |
13 |
Choice.D |
This option is incorrect because it is slightly higher than the correct number of ducks. The exact multiplication of 374.4 hens by 2 results in 748.8, not 749.8 |
749.8 |
14 |
Answer |
Option |
B |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
Copyright © 2020-2022 saibook.us Contact: info@saibook.us Version: 1.5 Built: 21-February-2024 09:20AM EST