15. (+348) + (-18) + (-58)
A) 272
B. -272 C. 424
D. -424
16.24 - (+12)=
A. 12
B. 36
C.-12
D. -36
17. 2(5)(-6)(-5) =
A. 300
B. -300
C.-150
D. 150
18.-313)(5)(-1) =
A. -45
B. -40
C. 45
D. 40
19.-420 ÷ 20 =
a.21
b.-21
c.-420
d.420
20.(-630)÷(-15)=
a.42
b.-42
c.-150
d.150
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Answer:
15. A
16. A
17. A
18. The answer isn't in the choices pls check if you mistyped the problem and just comment here so that I could answer it
19. B
20. A
Answer:
15.D
16.A
17.D
18.A
19.B
20.B