1.
Find the area of a circle with a diameter of 10 meters to the nearest square meter. (Use 3.14 for
)
A.
154 square meters
B.
157 square meters
C.
79 square meters
D.
314 square meters
Hint
2.
Find the area of a circle with radius 3.3 m. Round the answer to the nearest tenth. Use
.
A.
20.7 in
2
B.
34.2 in
2
C.
136.8 in
2
D.
10.4 in
2
Hint
3.
Find the area of a circle with diameter 5.04 km. Round the answer to the nearest tenth. Use
.
A.
49.7 km
2
B.
19.9 km
2
C.
24.8 km
2
D.
76.8 km
2
Hint
4.
Choose the best estimate for 9.08 · 5.2.
A.
0.5
B.
100
C.
45
D.
450
Hint
5.
Choose the best estimate for 6.8 · 2.1.
A.
14
B.
12
C.
7
D.
1.5
Hint
6.
Find 24.34 + 6.7.
A.
91.34
B.
32
C.
31.04
D.
25.01
Hint
7.
Find 39.45 - 18.578.
A.
20.872
B.
20.882
C.
14.733
D.
14.633
Hint
8.
Find 9.1 × 4.7.
A.
4,277
B.
42.77
C.
4.277
D.
427.7
Hint
9.
Simplify 8 + 2 · 7 + 1.
A.
23
B.
71
C.
18
D.
24
Hint
10.
Find 5 ·
.
A.
B.
C.
7
D.
6
Hint