1. Use front-end estimation to estimate the sum.

8.86 + 9.43 + 5.75 = ?

A. 9 + 10 + 6 + 2 = 27
B. 10 + 10 +10 + 2 = 32
C. 8 + 9 + 5 + 1 = 23
D. 8 + 9 + 5 + 2 = 24

2. Find the estimated difference. Round to the nearest whole number.
83.92 - 47.23 = ?

A. 37
B. 47
C. 50
D. 30

3. Find the exact sum or difference.
0.78 - 0.52= ?

A. 0.16
B. 0.26
C. 0.24
D. 0.14

4. Find the exact sum or difference.
46.63 + 5.38 = ?

A. 51.91
B. 51.01
C. 52.11
D. 52.01

5. Find the exact sum or difference.
$5.03 - $3.30 = ?

A. $1.67
B. $1.63
C. $1.73
D. $1.83