1.
4/5 + 8/9

A. About 1 1/2
B. About 1 3/4
C. About 1 8/9
D. About 2

2.
17/18 - 3/7

A. About 1/4
B. About 1/2
C. About 0
D. About 1

3.
5*2 3/5

A. About 10
B. About 10 3/5
C. About 12
D. About 15

4.
25 7/8 ÷ 2 8/9

A. About 9
B. About 10
C. About 11
D. About 12

5. Mr. Garcia's class ate 3 2/3 pizzas, Mrs. Rizzoli's class ate 4 1/8 pizzas, and Mrs. Tidal's class ate 3 1/4 pizzas. Estimate the total number eaten by all three classes.

A. About 9
B. About 10
C. About 11
D. About 12