June 2023 2 37 Report
2) arme e efetue ( com as contas e cálculos)

a) 84,3 + 5,7=
b) 9 - 3,8 =
c) 8493 x 5
d) 8493 x 52
e) 97508 x 654
f) 78456 ÷ 23
g) 108963 ÷ 54
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resolva as seguintes expressoes: a) - 13 + 7 - 2 - 8 + 15 - 1 b) + 22 - 3 - 14 - 5 + 24 + 12 c) 12 - 7 + 3 - ( - 3 ) +( + 9 ) d) ( - 2 ) - ( - 3 ) + ( + 5 )
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resolva as seguintes expressoes: a) ( + 10 ) . ( - 12 ) . ( + 1 ) . ( - 3 ) . ( + 2 ) = b) ( - 3 ) . ( - 2 ) . ( - 10 ) . ( + 4 ) = c) ( - 2 ) . ( - 2 ) . 0 . ( - 2 ) . ( - 2 ) = d) ( + 1 ) . ( + 3 ) . ( - 3 ) . ( - 3 ) = e) ( - 1 ) . ( - 12 ) . ( + 57 ) =
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