3.14×(11÷8)+0.314×(25÷4)-31.4×0.2
问题描述:
3.14×(11÷8)+0.314×(25÷4)-31.4×0.2
答
3.14×(11÷8)+0.314×(25÷4)-31.4×0.2
=3.14×(11÷8)+3.14×(2.5÷4)-3.14×2
=3.14×(11/8+2.5/4-2)
=3.14×(11/8+5/8-2)
=3.14×(2-2)
=3.14×0
=0