Question

me ajudem nessa prova pra entregar amanhã

a) (10-8) + (6-4) - (14-9) - 6 = ?

b) - (16 - 45 - 81 + 150 =

c) - (-52) + (+40) + (+12) + (- 7) =


2 efetue multiplicação e divisão, observando os sinais


a) (-240) ÷ (+6) =

b) (-30) . (+1) . (-5) . (+3) =


os "." são "÷" e so pra falar que quem quiser colocar calculo pode colocar

Answer 1

1)

a)

$\large(10 - 8) + (6 - 4) - (14 - 9) - 6 \\ \large2 + 2 - 5 - 6 \\ \large4 - 5 - 6 \\ \large4 - 11 \\ \large - 7$

b)

$\large - 16 - 45 - 81 + 150 \\ \large - (16 + 45 + 81) \\ \large - ( 61 + 81) \\ \large - 142 \\ \large - 142 + 150 \\ \large8$

c)

$\large( - 52) + 40 + 12 + ( - 7) \\ \large - 52 + 40 + 12 + ( - 7) \\ \large - 52 + 40 + 12 - 2 \\ \large - 59 + 40 + 12 \\ \large - 59 + 52 \\ \large - 7$

2)

A)

$\large( - 240) \div 6 \\ \large - (240 \div 6) \\ \large - 40$

B)

$\large( - 30) \times 1 \times ( - 5) \times 3 \\ \large( - 30) \times ( - 5) \times 3 \\ \large \: 30 \times 5 \times 3 \\ \large150 \times 3 \\ \large450$

$\LARGE\bf{\pink{E}\purple{s}\blue{p}\green{e}\orange{r}\red{o}~\pink{t}\purple{e}\green{r}~\orange{a}\red{j}\pink{u}\purple{d}\blue{a}\green{d}\orange{o}\red{!}}$

$\LARGE\mathscr{{Attard}}$