Question

qual o valor do expressão 81 1/4 + 25 1/2 -100 1/2
$81\frac{1}{4} + 25 \frac{1}{2} - 100\frac{1}{2}$
A) 2
b) -2
C)4
D)-4​

Answer 1

Olá!

Resposta: -2 (Letra B).

81^1/4 + 25^1/2 - 100^1/2

81^1/4 = 3

25^1/2 = 5

100^1/2 = 10

3+5-10

8-10

-2