February 2021 0 142 Report
Cite três paises desenvolvido na América, África, Europa, Ásia.
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8) Calcule: a) -12 - 13 - 28 - 17 - 19 - 23 - 50= b) 600+1228+456+38+169= c) -608+309 d) 608-309= e) 12 - 15 - 12 + 15 + 30 + 30 - 60 - 12 -12 + 24=
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7) Calcule: a) -21 + 13 + 22 - 19= b) -82 + 43 + 45 - 17= c) -21 + 31 + 19 - 16 + 61= d) 90 - 65 - 35 + 102 + 18- 160= e) 62 - 101 - 94 + 47 + 81 - 36 - 41= f) -2 + 38 - 17 - 16=
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6) Calcule: a) (-2) + (13) + (8) + (-5)= b) (5) + (1) + (-4) + (-8) + (2)= c) (10) - (-5) - (-3) - (-9)= d) -(10) - (-5) + (-6) + (-9) - (-6)=
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