Question

a) 5 · (–4) + (–3) · (+6) – (–50)
b) 2 – 5 · [7 + (+2) · (–3)]
c) (-9) : (+3) - 3 · [4 - (-8 + 81 : 9)] -5 · (-1)
Contestad pls:3

Answer 1

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a) 5 · (–4) + (–3) · (+6) – (–50)

= -20-18+50 = 50-38= 12

b) 2 – 5 · [7 + (+2) · (–3)]  = 2-5 (7-6) = 2-5*1 =2-5 = -3

c) (-9) : (+3) - 3 · [4 - (-8 + 81 : 9)] -5 · (-1) = -3 -3 (4-(-8+9) ) 5 = 3 -3 (4-1 ) 5 = -3-3*3+5= -3-9+5 = -7

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