如题所述
第1个回答 2016-04-22
630÷45的简便方法计算
630÷45
=630÷90*2
=7*2
=14
630÷45
=630÷90*2
=7*2
=14
第2个回答 2023-01-21
630÷45
=630÷9÷5
=70÷5
=14
=630÷9÷5
=70÷5
=14
第3个回答 2023-01-22
630÷45
=(630x2)÷(45x2)
=630x2÷90
=630÷90x2
=7x2
=14本回答被网友采纳
=(630x2)÷(45x2)
=630x2÷90
=630÷90x2
=7x2
=14本回答被网友采纳