Question

calcule as expressões:
a) 4÷2+[(5×2-4+6) × 10] -15

b) 3+5×2÷5-2+3

c)1000-10×10+500×2-400​

Answer 1

Resposta:

a) 107

b) 6

Explicação passo a passo:

a) 4÷2+[(10-4+6)*10]-15

= 2+[12*10]-15

= 2+120-15

= 2+120-15

= 107

b) 3+5*2÷5-2+3

= 3+10÷5-2+3

= 3+2-2+3

= 6

c) 1000-10×10+500×2-400​

= 1000-100+1000-400

= 1500