Question

3) - Calcule:

a) ( + 10 ).( – 12 ).( + 1 ).( – 3 ).( + 2 ) =


b)( – 3 ).( - 2 ).( – 1 0).( + 4 ) =

c) ( – 2 ).( – 2 ).( – 2 ).( – 2 )


d) ( + 3 ).( + 3 ).( - 3 ).( - 3 ) =


e)( - 1 ) . ( -12 ) . ( + 57 ) =



f) 59 – 43 – 76 + 24 =


g)68 – 65 – 89 – 24 =



h)– 46 + 25 – 135 + 47 =



i) 90 – 40 – 37 + 62 =



j) 73 – 87 – 98 + 97 =



K) 27 – 74 – 31 + 38 =



l)88 + 54 + 99 – 43 =



m)87 – 54 – 34 + 33 =



n)–20 + 30 + 20 – 30 =



o)–13 + 46 + 13 – 46 =






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Answer 1

Resposta:

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