Simplification and Approximation

A. 167
B. 154
C. 162
D. 181
Explanation:
(3.32/100 * 2113) * 1/42 = (70.1516) * 1/42 = 167

A. 4.92
B. 3.77
C. 3.01
D. 4.14
Explanation:
1/3 * 1/3 * 1/7 * 1/9 * 2140 = ?
? = 3.77

A. 215
B. 235
C. 225
D. 255
Explanation:
? = (21345 * 45) / 4270
? = 225

A. 383
B. 372
C. 380
D. 374
Explanation:
? = 183.21 + 200 = 383

A. 1.4
B. 1.6
C. 1.5
D. 1.2
Explanation:
(180/37 of 14.8) / (17/60.1 of 180.30) = 72/51 = 24/17 = 1.41

A. 78
B. 76
C. 74
D. 72
Explanation:
45/100 * 125 + 22.22 = 56.25 + 22.22 = 78.47

A. 130
B. 135
C. 142
D. 148
Explanation:
109 * 34 – 108 * 33
= 3706 – 3564 = 142

A. 1109300
B. 1109400
C. 1108400
D. 1108300
Explanation:
108 * 107 * 96 ≡ 1109400

A. 34
B. 35
C. 36
D. 37
Explanation:
25 2/5 + 8 4/5 + 4/5 = 34 4/5 ≡ 35

A. 1
B. 3/2
C. 2
D. 5/2
Explanation:
(64 + 9 + 9) / (2 * 20 + 1) = 82/41 = 2