> 数学 >
简便方法计算 4.4*28.6+41.1*5.6
原式=(10-5.6)*28.6+41.1*5.6
=10*28.6-5.6*28.6+41.1*5.6
=286+(41.1-28.6)*5.6
=286+12.5*5.6
=286+12.5*8*0.7
=286+70
=356
人气:469 ℃ 时间:2020-06-04 12:13:02
解答
原式=(10-5.6)*28.6+41.1*5.6
=10*28.6-5.6*28.6+41.1*5.6
=286+(41.1-28.6)*5.6
=286+12.5*5.6
=286+12.5*8*0.7
=286+700
=986
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版