2.86*4.96+2.48*4.28用乘法分配律怎么解答?
问题描述：
2.86*4.96+2.48*4.28用乘法分配律怎么解答?
答
2.86*4.96+2.48*4.28
=2.86*2*2.48+2.48*4.28
=5.72*2.48+2.48*4.28
=(5.72+4.28)*2.48
=10*2.48
=24.8
答
2.86*4.96+2.48*4.28
=2.86*2*2.48+2.48*4.28
=2.48*(5.72+4.28)
=2.48*10
=24.8