Estimating Multiplication Of Fractions Worksheet With Answer Key
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1
2Name:
Estimating Multiplication of Fractions
Determine the answer using estimation.
A n s w e r s
2
2
1
5 × 6
/
=
5 × 6
/
=
33
/
When multiplying a
3
3
3
A
1.
2
1
fraction and a whole
In the example above, 6
/
The actual answer is 33
/
3
3
number you can
is larger than 6 but less
which is between 5 × 6 (30)
A
estimate the answer by
than 7.
and 5 × 7 (35).
2.
remember that the
So we know the answer is
fraction is just part of a
going to be between 5 × 6
B
3.
number.
and 5 × 7.
A
4.
1) 7 × 5
8
6
6
8
6
⁄
⁄
⁄
⁄
⁄
A. 40
B. 33
C. 34
D. 49
=
10
10
10
10
10
D
5.
2) 5 × 7
8
⁄
A. 39
B. 45
C. 42
D. 34
=
B
10
6.
B
7.
3) 7
2
2
2
2
2
⁄
⁄
⁄
⁄
⁄
A. 74
B. 65
C. 60
D. 73
× 9 =
8
8
8
8
8
B
8.
4) 2 × 2
2
1
2
1
1
⁄
⁄
⁄
⁄
⁄
A. 5
B. 3
C. 9
D. 1
=
3
3
3
3
3
B
9.
5) 4
3
3
1
3
1
⁄
⁄
⁄
⁄
⁄
A. 19
B. 17
C. 26
D. 22
× 5 =
D
7
7
7
7
7
10.
A
6) 7
11.
3
4
4
4
4
⁄
⁄
⁄
⁄
⁄
A. 20
B. 22
C. 26
D. 19
× 3 =
5
5
5
5
5
D
12.
7) 7
2
⁄
A. 74
B. 69
C. 61
D. 54
× 9 =
3
8) 8
1
5
5
1
5
⁄
⁄
⁄
⁄
⁄
A. 35
B. 40
C. 46
D. 50
× 5 =
6
6
6
6
6
9) 6 × 7
5
3
3
5
3
⁄
⁄
⁄
⁄
⁄
A. 54
B. 45
C. 39
D. 40
=
9
9
9
9
9
10) 5
1
1
1
1
1
⁄
⁄
⁄
⁄
⁄
A. 13
B. 14
C. 12
D. 16
× 3 =
2
2
2
2
2
11) 7
6
8
6
8
8
⁄
⁄
⁄
⁄
⁄
A. 22
B. 19
C. 25
D. 27
× 3 =
10
10
10
10
10
12) 4 × 3
2
1
1
1
1
⁄
⁄
⁄
⁄
⁄
A. 9
B. 19
C. 8
D. 13
=
7
7
7
7
7
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3
Math
11-12 8
0
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