Question

能简算的要简算.9-4.8÷6×50.5 （1.4×0.3+2.46）÷1.8 (2.5 ÷2+2÷2.5)×0.4

Answer 1

3.71+3.71X7.4-8.4X3.71

=3.71X1+3.71X7.4-8.4X3.71

=3.71X(1+8.4-7.4)

=3.71X2

=7.42

1.2+8.8×1.25

=1.2+(8+0.8)x1.25

=1.2+(8x1.25+0.8x1.25)

=1.2+(10+1)

=12.2

16.2÷[64.8-(51.3-2.7)]

=16.2÷(64.8-51.3+2.7)

=16.2÷16.2

=1