Area of a split rectangle

Grade 3 · Level 2 · Sheet 1

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the answers

Name Date

Free from tutor.in4me.app · 3.MD.C.5, 3.MD.C.6, 3.MD.C.7.a, 3.MD.C.7.b, 3.MD.C.7.c, 3.MD.D.8 · Five minutes a day online, and the difficulty follows your child.

1.
What is the area of both parts together?
6
53
Answer:
2.
What is the area of both parts together?
4
53
Answer:
3.
What is the area of both parts together?
6
46
Answer:
4.
What is the area of both parts together?
2
34
Answer:
5.
What is the area of both parts together?
5
32
Answer:
6.
What is the area of both parts together?
2
32
Answer:
7.
What is the area of both parts together?
3
53
Answer:
8.
What is the area of both parts together?
7
46
Answer:
9.
What is the area of both parts together?
3
23
Answer:
10.
What is the area of both parts together?
7
52
Answer:
11.
What is the area of both parts together?
8
45
Answer:
12.
What is the area of both parts together?
3
52
Answer:

Show the answer key

1.48
2.32
3.60
4.14
5.25
6.10
7.24
8.70
9.15
10.49
11.72
12.21

The mistakes behind most wrong answers

A wrong answer in area of a split rectangle 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.

What is the area of both parts together?
4
64
The answer is 40. A child who answers 24 probably answered the first half and stopped.
What is the area of both parts together?
3
24
The answer is 18. A child who answers 24 probably multiplied all three numbers together.

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.

Answer key · Area of a split rectangle · Level 2 · Sheet 1

The mistakes behind most wrong answers