Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Decimal Subtraction |
Grade: 4-a Lesson: S2-L3 |
Explanation: Let us verify the answer here with the steps. |
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Ross sealed 372.8 grams of flour and Kate sealed 165.2 grams of flour. How much more flour did Ross seal than Kate? |
|
2 |
Clue |
More implies comparison |
Subtraction |
3 |
Hint |
Operator used : Subtraction |
- |
4 |
Step |
Amount of flour sealed by Ross |
372.8 grams |
5 |
Step |
Amount of flour sealed by Kate |
165.2 grams |
6 |
Step |
Amount of more flour sealed by Ross than Kate |
372.8 grams - 165.2 grams |
7 |
Step |
= |
207.6 |
8 |
Step |
Therefore, amount of more flour sealed by Ross than Kate |
207.6 grams |
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
This is incorrect. Subtracting the amounts as shown does not yield 200.6 grams |
200.6 |
11 |
Choice.B |
This is incorrect because it overestimates the difference. The correct subtraction leads to 207.6 grams, not 210.6 grams |
210.6 |
12 |
Choice.C |
This is incorrect because the calculation 372.8−165.2 does not result in 205.6. It results in 207.6 |
205.6 |
13 |
Choice.D |
This is correct. Subtracting the amounts as shown yields 207.6 grams |
207.6 |
14 |
Answer |
Option |
D |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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