Estimating
Estimate the sum of 1/8 + 5/8
0 + 1/2 = 1/2
Add 1/8 + 3/8
4/8 = 1/2
When adding mixed numbers, should you add the fractions or the whole numbers first?
Add the fractions first.
Subtract 3/4 - 5/8
1/8
Find p when p - 5/6 = 3/8
p = 3/8 + 5/6 = 1 5/24
Estimate the difference of 15/16 - 1/10
1 - 0 = 1
Add 7/9 + 1/2
1 5/18
Add 17 + 9 3/16
26 3/16
Subtract 7/8 - 4/5
3/40
Find g when g - 1 1/4 = 3/4
g = 3/4 + 1 1/4 = 2
Estimate the sum of 7 2/3 + 4 3/4
8 + 5 = 13
Add 3/10 + 1/6
7/15
Add 1 5/6 + 2 1/3
4 1/6
Subtract 4/11 - 8/22
0
Find r when 2/3 = r - 1/3
2/3 + 1/3 = r
1 = r
Estimate the difference of 15 3/4 - 9/10
16-1 = 15
Add 3/8 + 5/24
7/12
Add 16 1/8 + 7 7/8
24
Subtract 1/2 - 2/5
1/10
z - 1/9 = 1/18
z = 1/9 + 1/18 = 1/6
Estimate the sum of 9/10 + 1/6 + 3/8
1 + 0 + 1/2 = 1 1/2
Add 1/4 + 1/3 + 1/2
1 1/12
Add 6 2/3 + 7 2/5
14 1/15
Subtract 3/8 - 1/10
11/40
find y when y - 1/6 = 1/6
y = 1/6 + 1/6 = 1/3