How long something takes
Grade 3 · Level 2 · Sheet 1the answers
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- 1.Answer:
Owen starts at 9:40 and finishes at 10:05. How many minutes is that?
- 2.Answer:
Liam starts at 6:40 and finishes at 7:20. How many minutes is that?
- 3.Answer:
Ava starts at 8:30 and finishes at 9:20. How many minutes is that?
- 4.Answer:
Ivy starts at 3:45 and finishes at 4:25. How many minutes is that?
- 5.Answer:
Ethan starts at 9:55 and finishes at 10:25. How many minutes is that?
- 6.Answer:
Emma starts at 6:20 and finishes at 7:10. How many minutes is that?
- 7.Answer:
Ava starts at 1:35 and finishes at 2:20. How many minutes is that?
- 8.Answer:
Noah starts at 6:45 and finishes at 7:40. How many minutes is that?
- 9.Answer:
Liam starts at 5:50 and finishes at 6:45. How many minutes is that?
- 10.Answer:
Liam starts at 12:50 and finishes at 1:40. How many minutes is that?
- 11.Answer:
Ivy starts at 10:45 and finishes at 11:25. How many minutes is that?
- 12.Answer:
Sofia starts at 10:40 and finishes at 11:30. How many minutes is that?
Show the answer key
- 1.25
- 2.40
- 3.50
- 4.40
- 5.30
- 6.50
- 7.45
- 8.55
- 9.55
- 10.50
- 11.40
- 12.50
Answer key · How long something takes · Level 2 · Sheet 1
- 1.25
- 2.40
- 3.50
- 4.40
- 5.30
- 6.50
- 7.45
- 8.55
- 9.55
- 10.50
- 11.40
- 12.50
The mistakes behind most wrong answers
A wrong answer in how long something takes is rarely random. These are the ones that come up most often, each on a real problem — worth knowing before you mark a sheet, because the fix for each is different.
Kai starts at 12:40 and finishes at 1:30. How many minutes is that?
The answer is 50. A child who answers 20 probably counted up to the hour and stopped there.
Owen starts at 2:20 and finishes at 3:15. How many minutes is that?
The answer is 55. A child who answers 95 probably treated the time as an ordinary number.
Liam starts at 3:35 and finishes at 4:15. How many minutes is that?
The answer is 40. A child who answers 20 probably subtracted the two clock numbers and ignored the hour.
Ava starts at 1:50 and finishes at 2:40. How many minutes is that?
The answer is 50. A child who answers 55 probably counted one too many or too few.
In the app, every wrong answer is matched against mistakes like these, and the weekly email tells you which one your child keeps making — in those words, not as a percentage.