Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Decimal Addition |
Grade: 4-a Lesson: S2-L1 |
Explanation: Let us verify the answer here with the steps. |
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Cassie finished the packing in 234.6 seconds and Betty finished it in 126.5 seconds. How much time did they both take to finish the packing? |
|
2 |
Clue |
Both implies adding up |
Addition |
3 |
Hint |
Operator used : Addition |
+ |
4 |
Step |
Cassie finished the packing |
234.6 seconds |
5 |
Step |
Betty finished |
126.5 seconds |
6 |
Step |
Time taken by both of them |
234.6 seconds + 126.5 seconds |
7 |
= |
\$361.1\$ seconds |
|
8 |
Step |
Therefore,the time taken by them to finish the packing |
361.1 seconds |
9 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
10 |
Choice.A |
This option is Incorrect because this is not the correct result of adding 234.6 and 126.5. There seems to have been an error in the addition process |
390.1 |
11 |
Choice.B |
This option is Incorrect because this number is close to the correct answer, but it is not the exact sum of 234.6 and 126.5. There might have been a miscalculation |
361.5 |
12 |
Choice.C |
this option is Incorrect because this number is significantly lower than the correct sum of 234.6 and 126.5 |
351 |
13 |
Choice.D |
This option is correct ,which is the accurate sum of the times Cassie and Betty took to finish packing |
361.1 |
14 |
Answer |
Option |
D |
15 |
SumUp |
Can you summarize what you’ve understood in the above steps? |
|
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