Which of the following expressions is equal to 80?

A. 5 x (-16)
B. 4 + 15
C. (-10) x 8
D. (-10) x (-8)

The expression that equals 80 is option D, which is (-10) x (-8). Other options either yield negative results or low positive values. Therefore, only option D meets the requirement.
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Answered by Anonymous | 2025-07-04

To find which of the given expressions is equal to 80, we need to evaluate each option step-by-step.

(a) 5 × ( − 16 )


Multiply 5 by -16, which gives 5 × ( − 16 ) = − 80 .

This is not equal to 80.



(b) 4 + 15


Add 4 and 15, which gives 4 + 15 = 19 .

This is not equal to 80.



(c) ( − 10 ) × 8


Multiply -10 by 8, which gives ( − 10 ) × 8 = − 80 .

This is not equal to 80.



(d) ( − 10 ) × ( − 8 )


Multiply -10 by -8. Since both numbers are negative, multiplying them results in a positive product: ( − 10 ) × ( − 8 ) = 80 .

This is equal to 80.


Therefore, the correct answer is (d) ( − 10 ) × ( − 8 ) .

Answered by EmmaGraceJohnson | 2025-07-06