Question

3.28乘以0.75+1.72乘以四分之三

3.28乘以0.75+1.72乘以四分之三

Answer 1

解: 3.28*0.75+1.72*3/4
=3.28*0.75+1.72*0.75
=0.75*(3.28+1.72)
=0.75*5
=3.75

Answer 2

＝3.28×3/4+1.72×3/4
＝（3.28+1.72）×3/4
＝5×3/4
＝15/4
＝3.75