1. 1) Calcule o valor das expressões numéricas abaixo e resolva-as na folha seguinte:
a) 12 : 6 + 2 x 9 – 3 =
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b) 9 x 9 + 18 : 3 – 8 =
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c) 81 : 9 + 5 x 7 – 4 =
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d) 32 x 15 – 240 : 12 =
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e) 176 : 8 + 75 x 3 + 1 =
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f) 66 : 3 + 9 x 3 – 10 =
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g) 105 x 4 – 40 : 8 + 3 =
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h) 192 : 2 – 47 x 2 + 4 =
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i) 12 x 4 + 8 : 2 + 7 x 3 =
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j) 36 + 2 x { 25 + [ 18 – ( 5 – 2 ) x 3 ] } =
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k) { 230 – 3 x [ 24 – (25 – 13 ) : ( 5 + 1 ) ] – 24 : 3 } : ( 14 – 8) =
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l) 226 : 2 – 9 x 8 + 2 =
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