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Estimating Sums & Differences
Adding & Subtracting Fractions
Adding Mixed Numbers
Vocabulary
Subtracting Mixed Numbers
100
Estimate the sum.

1/16 + 2/15 = 

What is 0.
100

Find the difference.

2/3 - 7/12 =


What is 1/12
100
Find the sum.

3 1/2 + 1 3/4 = 

What is 5 1/4
100
This is used to name one or more parts of a whole or set.
What is a fraction.
100
Find the difference.

3 1/2 - 1 1/3 =

What is 2 1/6
200
Estimate the sum.

37/40 + 26/50 = 

What is 1/2
200
Find the sum.

4/9 + 1/4 = 

What is 25/36
200
Find the sum.

2 6/10 + 1 3/5 =

What is 4 1/5
200
These are common fractions used for estimating. 
What are benchmark fractions.
200
Find the difference.

7 2/3 - 3 5/6 = 

What is 3 5/6
300
Estimate the difference.

1 10/12 - 8/9 = 

What is 1
300
Find the difference.

7/8 - 2/3 = 

What is 5/24
300
Find the sum.

4 1/10 + 6 1/2 =

What is 10 3/5
300
These are fractions that name the same part of a whole. Example: 1/2 = 2/4
What are equivalent fractions. 
300
Find the difference.

10 5/12 - 4 7/8 = 

What is 5 13/24
400
Estimate the difference.

10 5/6 - 2 3/10 = 

What is 9
400
Find the sum or difference.

(7/8 + 1/12) - 1/2 = 

What is 11/24
400
Find the sum.

5 + 3 1/8 = 

What is 8 1/8
400
This has a whole-number part and a fractional part. 
What is a mixed number.
400
Find the difference.

6 1/3 - 2 3/5 =

What is 3 11/15
500

Estimate the sum.

33 14/15 + 23 9/25 = 

What is 57
500
Find the sum or difference.

13/14 - (1/2 + 2/7) = 

What is 1/7
500
Find the sum.

6 5/12 + 4 5/8 = 

What is 11 1/24
500
The number that is the same denominator of two or more fractions. 
What is the common denominator.
500
Find the difference.

3 - 1 3/4 = 

What is 1 1/4