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Adding Fractions
Subtracting Fractions
Multiplying Fractions
Dividing Fractions
Estimate
100
5/6 + 4/5
What is 1 19/30
100
19/25 - 1/2
What is 13/50
100
5/6 x 15/16
What is 25/32
100
2/3 divided 1/2
What is 1 1/3
100

Estimate 5 and 3/4 + 5 and 3/4

6+6 = 12

200
11/12 + 7/8
What is 1 19/24
200
5/8 - 11/20
What is 3/40?
200
5/6 x 3/5
What is 1/2
200
4 divided by 2/3
What is 6
200

Estimate 10 3/8 + 4 1/8

10 1/2 + 4 = 14 1/2

OR

10 + 4 = 14

300
6 5/12 + 12 5/8
What is 19 1/24
300
18 1/9 - 1 3/7
What is 16 43/63
300
8/9 x 9/10
What is 4/5
300
2/7 divided 7
What is 2/49
300

Estimate 4 6/7 - 2 1/3

5-2 = 3

400
17 2/9 + 12 1/3
What is 29 5/9?
400
26 - 4 1/9
What is 21 8/9
400
3 5/8 x 4 1/2
What is 16 5/16
400
2/13 divided 5/26
What is 4/5
400

Estimate 12 15/16 + 3 3/9 + 4 1/8

13+3+4 = 20

500
10 2/3 + 5 6/7
What is 16 11/21?
500
18 1/9 - 1 3/7
What is 16 43/63
500
6 2/3 x 7 3/5
What is 50 2/3
500
3 3/5 divided 4/5
What is 4 1/2
500

What is one reason why it's important to estimate?

Possible answers:

It helps you know that your actual answer is reasonable.