3.8乘4.5-0.38乘43
=3.8乘4.5-3.8乘4.3
=3.8乘(4.5-4.3)
=3.8乘0.2
=0.76
3.8*4.5-0.38*10*4.3
=3.8*4.5-3.8*4.3
=3.8*(4.5-4.3)
=3.8*0.2
=0.76
简便运算脱式(五年级)
3.8×4.5-0.38×43
=3.8×4.5-3.8×4.3
=3.8×(4.5-4.3)
=3.8×0.2
=0.76
3.8×4.5-0.38×43
=3.8×4.5-3.8×4.3
=3.8×(4.5-4.3)
=3.8×0.2
=0.76