Reglas adicionales de aritmética: Ejercicios con 2 términos

$100-(5+55)=$

40

$70:(14\times5)=$

1

$300:(5\times6)=$

10

$21-(6-13)=$

28

$99:(33:10)=$

30

$2-(1+1)=$

0

$19-(5+11)=$

3

$26-(11-2)=$

17

$66:(360:60)=$

11

$87-(7+0)=$

80

$18:(6\times3)=$

1

$15:(2\times5)=$

$1\frac{1}{2}$

$10:(10:5)=$

$5$

$500:(2000:25)=$

$6\frac{1}{4}$

$21:(30:10)=$

$7$

$300-(80-120)=$

340

$721-(300-76)=$

497

$112:(0.5:0.25)^2=$

28

$400-(105+80)=$

215

$210:(5.25\times4)=$

10