16.) [-7+(-12)(4)-(-24)]
17.) [-34-(-8)] [16-(-4)]
18.) -15÷(-3)(-2)+13-(-8)
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16. [-7+(-12)(4)-(-24)]
= -7 - 48 + 24
= 24 - 55
= -31
17. [-34-(-8)] [16-(-4)]
= (-34 + 8) (16 + 4)
= -26 × 20
= -520
18. -15÷(-3)(-2)+13-(-8)
= 5 × -2 + 13 + 8
= -10 + 21
= 11
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