4. Find the value of the following expressions.
(a) 90 ÷ [(-5) + (-4)
(d) (57 - (-3)÷ [(-60) ÷ 10]
(g) (-25) - (-7)] ÷[(-2)-(-1)]
(b) (-64) ÷[6-(-2)]
(e) (12-48) ÷ 1-6)
(c) [{40 ÷ (-4)} = (-2)]
(f) (-63) ÷ [(-20) + (-1)]
Answers
Answered by
0
Answer:
a)
90÷[-9]
90÷9
10
d)
(57+3)÷[-6]
60÷(-6)
-10
Answered by
4
Answer:
a)10 d) 10 g) 18 b)-8 e)7.2 c)10 = (-2) f)3
Step-by-step explanation:
a)90 ÷ [(-5) + (-4)]= 90 ÷ [-9]
=10
(d) (57 - (-3)÷ [(-60) ÷ 10])= [60÷(-6)]
=10
(g) (-25) - (-7)] ÷[(-2)-(-1)]= -18÷-1
=18
(b) (-64) ÷[6-(-2)] = (-64) ÷8
= -8
(e) (12-48) ÷ 1-6) = -36÷ (-5)
= 7.2
(c) [{40 ÷ (-4)} = (-2)] = 10 = (-2)
(f) (-63) ÷ [(-20) + (-1)] = (-63) ÷ (-21)
= 3
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