Elimine os parentes e calcule
a ( - 9 ) + ( - 6 ) =
b ( -15) + ( -11 ) =
c ( -18) + ( +10) =
d (+12) + ( -5) =
e ( +6 ) - ( -3 ) =
f ( +10) - ( +3 )
g (-1) - ( -5 )=
h (+ 3 ). ( -5 ) =
i ( -4 ) . ( + 8 )=
j ( - 9 ) . ( +11 )=
k ( -111). ( -2 )=
l ( +36 ) : ( +9 )=
m ( +55) : ( - 5 )=
n (- 40 ) : ( - 4 )=
o ( -27 ) : ( + 3 ) =
p ( 7 - ( -6 ) - ( -8) =
q ( 15 + ( -3 + 7 ) =
r ( 5. ( -3 -1 ) =
s ( 20 - 14 ) : ( - 2 ) =
Soluções para a tarefa
Explicação passo-a-passo:
a) (-9) + (-6) → -9 - 6 = -15
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b) (-15) + (-11) → -15 - 11 = -26
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c) (-18) + (+10) → -18 + 10 = -8
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d) (+12) + (-5) → +12 - 5 = +7
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e) (+6) - (-3) → +6 + 3 = +9
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f) (+10) - (+3) → +10 - 3 = +7
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g) (-1) - (-5) → -1 + 5 = +4
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h) (+3) · (-5) → +3 · (-5) = -15
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i) (-4) · (+8) → -4 · 8 = -32
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j) (-9) · (+11) → -9 ·11 = -99
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k) (-111) · (-2) → -111 · (-2) = +222
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l) (+36) ÷ (+9) → 36 ÷ 9 = +4
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m) (+55) ÷ (-5) → 55 ÷ (-5) = -11
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n) (-40) ÷ (-4) → -40 ÷ (-4) = +10
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o) (-27) ÷ (+3) → -27 ÷ 3 = -9
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p) (7) - (-6) - (-8) → 7 + 6 + 8 = 21
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q) (15) + (-3 + 7) → 15 + 4 = 19
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r) (5) · (-3 - 1) → 5 · (-4) = -20
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s) (20 - 14) ÷ (-2) → 6 ÷ (-2) = -3