Estimating Fraction Sums and Differences
Estimate each sum or difference by rounding to  
0, ½, or 1. 
1)  5  +  3
     6      10
1
0
½
 1½
Estimate each sum or difference by rounding to  
0, ½, or 1. 
2)   9  -  3
     10     7 
1
½
0
Estimate each sum or difference by rounding to  
0, ½, or 1. 
3)  7  -   4
     9       5
1
0
½
none
Estimate each sum or difference by rounding to  
0, ½, or 1. 
4)  4  +   1
     9       4
 1
0
½
Estimate each sum or difference by rounding to  
0, ½, or 1. 
5)  1  +   1
     8       6
0
1
½
none
Estimate each sum or difference by rounding to  
0, ½, or 1. 
6)  7  -   4
     8       5
0
½
1
2
Estimate each sum or difference by rounding to  
0, ½, or 1. 
7)  5  +  2
     8      7
1
0
½
Estimate each sum or difference by rounding to  
0, ½, or 1. 
8)  7  +  11
    10     12
1
½
0
Estimate each sum or difference by rounding to  
0, ½, or 1. 
9)  8  +   4
     9       7
0
1
½
13) About how much more orange juice than ginger
ale is used in the punch? 
About 1 cup
About 3½ cups
About 3 cups
About 2½ cups
Cranberry Juice
Orange Juice
Ginger Ale 
Ingredient
Amount (cups)
4 ½
14) About how much juice is used in the punch?
About 8 cups
About 7 cups
About 6 cups
About 9 cups
Cranberry Juice
Orange Juice
Ginger Ale 
Ingredient
Amount (cups)
4 ½
15) About how many cups of fruit punch does this 
recipe make?
About 6 cups
About 7 cups
About 5 cups 
About 8 cups
Cranberry Juice
Orange Juice
Ginger Ale 
Ingredient
Amount (cups)
4 ½
16) Damonte rolled the medicine ball 9⅞ feet. Zachary rolled it 9½ feet. Who rolled the medicine ball the farthest? 
About how much farther?
About 1 foot
About 1½ feet
About 2 feet
 About ½ foot 
17) Sara ran 5 and 6/7 miles on Monday and 4 and ⅜ on Tuesday. About how many miles did she run in all during those two days?
 About 10½ miles
About 10 miles 
About 9½ miles 
About 11 miles
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