Question

resolva a expressão 20÷10+{[3.4-6÷1]+[10+2.(81-4.20)]}​

Answer 1

Resposta:

20

Explicação passo-a-passo:

20÷10+{[3.4-6÷1]+[10+2.(81-4.20)]}​ =

20÷10+{[12-6÷1]+[10+2.(81-4.20)]}​ =

20÷10+{[12-6]+[10+2.(81-4.20)]}​ =

20÷10+{[6]+[10+2.(81-4.20)]}​  =

20÷10+{6+10+2.(81-80)]} =

20÷10+{6+10+2.(1)]} =

20÷10+{6+10+2]} =

20÷10+{18} =

2 + 18 = 20