立即下载 | 限时 免费 下载 |
同类热门下载
简介:
(1)14.15-4.75+1.85-2.25
=14.15+1.85-4.75-2.25
=(14.15+1.85)-(4.75+2.25)
=16-7
=9
(2)75.8-(15.3+5.8)
=75.8-15.3-5.8
=75.8-5.8-15.3
=70-15.3
=54.7
(3)18.917-(4.917+5.73)
=18.917-4.917-5.73
=14-5.73
=8.27
(4)14.7+5.9-14.7+5.9
=(14.7-14.7)+(5.9+5.9)
=0+11.8
=11.8
(5)58.92-15.5-18.92-4.5
=(58.92-18.92)-(15.5+4.5)
=40-20
=20 (6)23.4-8.54-1.46
=23.4-(8.54+1.46)
=23.4-10
=13.4