Question

calcule o valor das expressões numéricas


A) 2+8-3-5+15=

B) 12+[35+(10-8+)2]=

C)10-{2+(15-14)+[9+(3+1)]-7}

?????​

Answer 1

Resposta:

Explicação passo-a-passo:

A) 2+8-3-5+15= 17

B) 12+[35+(10-8+)2]= 12+[35+2+2]= 12+39= 51

C) 10-{2+(15-14)+[9+(3+1)]-7}= 10-{2+1+[9+4]-7}= {2+1+13-7}=9

Answer 2

a)

$(2 + 8) - 3 - 5 + (15)$

$10 - 8 + 15 = 17$

b)

$12 + (35 + (10 - 8) + 2)$

$12 + (35 + 2 + 2)$

$12 + 39 = 51$

c)

$10 - (2 + (15 - 14) + (9 + (3 + 1)) - 7$

$10 - (2 + 1) + (9 + 4) - 7$

$10 - 3 + 13 -7 = 13$