Question

1. Elimine os parênteses e calcule: a) ( + 62 ) + ( + 23 ) = ________________ d) ( + 6 ) + ( + 4 ) = _________________ b) ( + 65 ) + ( + 31 ) = ________________ e) ( + 51 ) + ( + 16 ) = ________________ c) ( + 4 ) + ( + 9 ) = _________________ f) ( + 7 ) + ( + 9 ) = ________________ 2. Elimine os parênteses e calcule: a) ( - 48 ) + ( - 29 ) = ________________ d) ( - 36 ) + ( - 14 ) = ________________ b) ( - 10 ) + ( - 10 ) = ________________ e) ( - 2 ) + ( - 5 ) = __________________ c) ( - 12 ) + ( - 18 ) = _______________ f) ( - 9 ) + ( - 15 ) = _________________ 3. Elimine os parênteses (se tiver) e calcule: a) ( + 3 ) + ( - 2 ) + ( - 3 ) + ( + 1 ) = _____________________________________ b) ( - 3 ) + (- 4 ) + ( + 4 ) + ( - 5 ) + ( - 2 ) = _______________________________ c) ( – 2 ) + ( + 7 ) + ( + 6 ) + ( - 6 ) = _____________________________________ d) ( - 3 ) + ( + 5 ) + ( - 1 ) + ( - 2 ) = ______________________________________ e) – 8 + 3 – 3 + 1 – 0 + 7 + 8 = ____________________________________ f) – 4 – 2 – 1 – 4 – 6 = ________________________________________ g) – 9 – 5 + 2 + 7 + 9 + 5 – 2 = _______________________________________ 4. Resolva as operações com números racionais: a) (+ 1 4 ) + ( - 5 2 ) = b) ( + 1 5 ) + ( - 1 2 ) = c) ( - 1 4 ) + ( + 3 4 ) = d) (- 1 2 ) + ( - 3 4 ) = e) ( - 3 4 ) + ( + 1 4 ) = f) ( - 1 3 ) + (+ 1 2 ) = g) ( + 1 ) + ( - 4 3 ) + ( + 1 3 ) = h) ( – 4 ) + ( - 2 5 ) + ( - 1 2 ) = i) ( + 3 5 ) + ( - 4 5 ) + ( - 1 5 ) = j) (– 4 3 ) + 1 2 + 2 3 + ( + 3 2 ) =

Answer 1

Resposta:

é só somar todos os números

Explicação passo-a-passo:

espero ter ajudado