Question

1. Calcule: a) +13+(+10) = b)+25+(+45) = c) – 8+(-14) = d)15+(-4) =

Answer 1

$a) + 13 + ( + 10) \\ 13 + 10 \\ \large \boxed{ \red{23}}$

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$b) + 25 + ( + 45) \\ 25 + 45 \\ \large \boxed{ \red{70}}$

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$c) - 8 + ( - 14) \\ - 8 - 14 \\ - (8 + 14)\\ \large \boxed{ \red{ - 22}}$

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$d)15 + ( - 4) \\ 15 - 4 \\ \large \boxed{ \red{11}}$

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Att, IzabelaCristina2006 ❤️ ♈