问题描述:
2.5×4.4,(8+0.4)x25
最佳答案:
方法一
2.5*4.4
=2.5*4*1.1
=10*1.1
=11
方法二
2.5*4.4
=2.5*(4+0.4)
=2.5*4+2.5*0.4
=10+1
=11
(8+0.4)x25
=8x25+0.4x25
=200+10
=210
补充回答:
谢谢你
网友(127.255.255.*)2018-11-16
2.5×4.4 、(8+0.4)x25请用简便方法计算。
问题描述:
2.5×4.4,(8+0.4)x25
方法一
2.5*4.4
=2.5*4*1.1
=10*1.1
=11
方法二
2.5*4.4
=2.5*(4+0.4)
=2.5*4+2.5*0.4
=10+1
=11
(8+0.4)x25
=8x25+0.4x25
=200+10
=210
补充回答:
谢谢你
网友(127.255.255.*)2018-11-16