Question

6. Select all the expressions that result in the same value as

40 + 120.
A. 4 (10
+30)
B. 2 (20 + 120)
C. 40 (1 + 3)
D. 40 (1 +30)
E. 10 (4+12)

Answer 1

A, C, E

Explanation:

40 + 120 = 160

Remember the correct order of operations, and do the operation inside parentheses first.

A. 4(10 + 30) = 4(40) = 160

B. 2(20 + 120) = 2(140) = 280

C. 40(1 + 3) = 40(4) = 160

D. 40(1 + 30) = 40(31) = 1240

E. 10(4 + 12) = 10(16) = 160

Answer: A, C, E