Question

resolva as expressões

a)100-3x(20+12):2=

b) 30+80:4:2-7=

c) 100-413x20-5x4)+1=

d) 10+240:30:2+13=

e)150-2x3x5+10=​

Answer 1

a)100-3(20+12)÷2 Some os números.

100-3×32÷2 multiplique e dívida os números.

100-48 Subtraia.

= 52

b) 33

c)100-413×(20-5×4)+1=

=100-413×(20-20)+1

=100-413×0+1=

=100-0+1=

=100+1

=101.

D)240:30:=8

8:2=4

4+10+13=

=27

e)150-2×3×5+10=

150+30+10=

120+10=

=130

Espero t t ajudado.