Angles that add up
Grade 4 · Level 1 · Sheet 1the answers
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- 1.Answer:
How many degrees is the whole angle?
- 2.Answer:
How many degrees is the whole angle?
- 3.Answer:
How many degrees is the whole angle?
- 4.Answer:
How many degrees is the whole angle?
- 5.Answer:
How many degrees is the whole angle?
- 6.Answer:
How many degrees is the whole angle?
- 7.Answer:
How many degrees is the whole angle?
- 8.Answer:
How many degrees is the whole angle?
- 9.Answer:
How many degrees is the whole angle?
- 10.Answer:
How many degrees is the whole angle?
- 11.Answer:
How many degrees is the whole angle?
- 12.Answer:
How many degrees is the whole angle?
Show the answer key
- 1.95
- 2.70
- 3.85
- 4.40
- 5.80
- 6.65
- 7.40
- 8.75
- 9.60
- 10.105
- 11.115
- 12.105
Answer key · Angles that add up · Level 1 · Sheet 1
- 1.95
- 2.70
- 3.85
- 4.40
- 5.80
- 6.65
- 7.40
- 8.75
- 9.60
- 10.105
- 11.115
- 12.105
The mistakes behind most wrong answers
A wrong answer in angles that add up 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.
How many degrees is the whole angle?
The answer is 115. A child who answers 80 probably answered with one of the numbers shown.
How many degrees is the whole angle?
The answer is 55. A child who answers 65 probably counted one group too many or too few.
How many degrees is the whole angle?
The answer is 120. A child who answers 40 probably took away instead of adding.
How many degrees is the other part?
The answer is 35. A child who answers 195 probably added instead of taking away.
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.