Question

Copie as expressões no caderno, com-
pletando as lacunas com um número in-
teiro, de modo que as igualdades sejam
verdadeiras.

a) –3. = 12

b) :3 = -36

c) (-5) = -100

d) 1:(-7) = 12

e) -9:3= 9

f) (-65): 1 = -5​

Answer 1

$\Huge\boxed{\begin{array}{l}\rm a)~\sf -3\cdot\boxed{\sf -4}=12\\\rm b)~\sf\boxed{\sf-12}\cdot3=-36\\\rm c)~\sf(-5)\cdot\boxed{\sf20}=-100\\\rm d )~\sf\boxed{\sf-84}\div(-7)=12\\\rm e)~\sf-9\div\boxed{\sf-1}=9\\\rm f)~\sf(-65)\div\boxed{\sf13}=-5\end{array}}$