依据题意列式计算如下:
0.25×4.5+0.25×5.6
=0.25×(4.5+5.6)
=0.25×10+0.25×0.1
=2.5+0.025
=2.525
0.25×4.5 0.25×5.6
=0.25×(4.5+5.6)
=0.25×10+0.025
=2.5+0.025
=2.525
0.25×4.5×0.25×5.6
=0.25×(4.5+5.5) You add 5x4.5x0.5's 5.6, no gold coins what?
这道题可以这样子来进行计算
零点25×10点1=0点25×10+0点25×0点1=2点5+0点025=10点525