算法一:
7500÷125
=(7500×4)÷(125×4)
=(7500×4)÷500
=15*4
=60
算法二:
7500÷125
=(7500×8)÷(125×8)
=60000÷1000
=60
算法三:
7500÷125
=7500÷(25×5)
=7500÷25÷5
=300÷5
=60
小学题目出的应该是7500÷125
=(7500x8)÷(125x8)
=60000÷1000
=60
1000/125=8,7.5✘8=60
125等于5乘25