Question

1.Resolva (+10 ) - ( -20 ) - ( +30 ) =
a) 221
b)3
c)0
d)15
2) Calcule +8 -17 +5 - 14 - 20 =
a) -38
b)28
c)-17
d)-42
3) Resolva ⎨ - 2 (- 2 ) + (- 7 ) - ⦍ (-18 + 10 - 6 ) + ( 7 - 15 ) ⦎ ⎬ =
a) 20
b)32
c)-15
d)17
4) Determine, ⎨ ⦍ 73 - 49 - 15 + 20 ⦎ - ( 40 -30 - 1) ⎬ +( - 3 ) =
a)- 88
b)100
c)97
d)112
5)Calcule, 8 + ( - 1 ).⦍ 6 - ( 20 - 25 . 2) - 3 . 5. (- 6) ⦎ =
a) 93
b) - 115
c) 221
d) -118
6) Resolva ( -64 ) ∶ ( -4 ) + ( -2 ).⦍ 36 + ( - 2 ) ⦎ - ( - 8 ) ∶ 4 =
a) -32
b) - 11
c) 22
d) 18

Answer 1

Resposta:

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