Question

Calcule o valor das expressões:
a) 30-(5+3) = b) 15+(8+2) = c) 15-(10-1-3) = d) 23-(2+8) -7 = e) (10+5) - (1+6) = f) 7-(8-3) +1=​

Answer 1

a) 30 - (8)

= 22

~~~

b) 15 + (10)

= 25

~~~

c) 15 - (6)

= 9

~~~

d) 23 - (10) - 7

= 13 - 7

= 6

~~~

e) (15) - (7)

= 8

~~~

f) 7 - (5) + 1

= 2 + 1

= 3

Espero ter ajudado