Question

A.Sum of integer and its additive inverse is ___________.B.Sum of -22 and -44 is ______________.C.-36 ÷ ( ___)=-9d._________ is absolute value of -998.E.The value of(−2)−[(−3)−(−7)−(−6)]is___________.

Answer 1

A. 0

B. -66

C. 4

D. 998

E. -12

Explanation:

A. By definition, the sum of anything and its additive inverse is zero.

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B. If you have trouble with sums, your calculator can help.

-22 + (-44) = -22 -44 = -66

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C. -36/x = -9 can be solved by multiplying by x and dividing by -9:

-36 = -9x

-36/-9 = x = 4

Since the product of the divisor and quotient is the dividend, dividing the dividend by either gives the other. Here, your dividend is -36 and your quotient is -9. To find the divisor, you can divide -36 by -9, as we did.

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D. The absolute value function changes the sign of negative numbers to positive:

|-998| = 998

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E. If you have trouble with sums, your calculator can help.

(−2)−[(−3)−(−7)−(−6)]

= -2 -(-3 +7 +6) = -2 -10 = -12