计算下面各题,你认为怎样简便就怎么算。 2.02X8.5 1.2
答案:1 悬赏:10 手机版
解决时间 2021-03-30 06:52
- 提问者网友:浩歌待明月
- 2021-03-29 14:51
计算下面各题,你认为怎样简便就怎么算。 2.02X8.5 1.2
最佳答案
- 五星知识达人网友:鸽屿
- 2021-03-29 16:20
2.02X8.5
=2×8.5+0.02×8.5
=17+0.17
=17.17
1.25+4.6+0.75
=(1.25+0.75)+4.6
=2+4.6
=6.6
1.6X7.5x1.25
=(0.2×7.5)×(8×1.25)
=1.5×10
=15
56X1.25
=7×(8×1.25)
=7×10
=70
3.4x7X1.5
=(3.4×1.5)×7
=5.1×7
=35.7
0.8X0.25X0.4X12.5
=(0.25×0.4)×(0.8×12.5)
=0.1×10
=1
=2×8.5+0.02×8.5
=17+0.17
=17.17
1.25+4.6+0.75
=(1.25+0.75)+4.6
=2+4.6
=6.6
1.6X7.5x1.25
=(0.2×7.5)×(8×1.25)
=1.5×10
=15
56X1.25
=7×(8×1.25)
=7×10
=70
3.4x7X1.5
=(3.4×1.5)×7
=5.1×7
=35.7
0.8X0.25X0.4X12.5
=(0.25×0.4)×(0.8×12.5)
=0.1×10
=1
我要举报
如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息,可以点下面链接进行举报!
大家都在看
推荐资讯