简便运算2.5×(1.9+1.9+3.8)
答案:5 悬赏:50 手机版
解决时间 2021-11-12 07:09
- 提问者网友：不爱我么
- 2021-11-11 15:19
简便运算2.5×(1.9+1.9+3.8)
最佳答案
- 五星知识达人网友：撞了怀
- 2021-11-11 16:30
2.5×(1.9+1.9+3.8)
=2.5×(1.9+1.9+1.9×2)
=2.5×(1.9×4)
=(2.5×4)×1.9
=10×1.9=19
=2.5×(1.9+1.9+1.9×2)
=2.5×(1.9×4)
=(2.5×4)×1.9
=10×1.9=19
全部回答
- 1楼网友：酒安江南
- 2021-11-11 19:40
2.5*2*1.9+2.5*3.8
=2.5*2*2*1.9
=10*1.9
=19
=2.5*2*2*1.9
=10*1.9
=19
- 2楼网友：逐風
- 2021-11-11 18:28
2.5×(1.9+1.9+3.8)
=2.5×(1.9+1.9+1.9×2)
=2.5×(1.9×4)
=(2.5×4)×1.9
=10×1.9=19
=2.5×(1.9+1.9+1.9×2)
=2.5×(1.9×4)
=(2.5×4)×1.9
=10×1.9=19
- 3楼网友：醉吻情书
- 2021-11-11 17:08
2.5×(1.9+1.9+3.8)
=2.5×(2×1.9+2×1.9)
=2.5×2×(1.9+1.9)
=5×3.8
=5×（4-0.2）
=5×4-5×0.2
=20-1
=19
=2.5×(2×1.9+2×1.9)
=2.5×2×(1.9+1.9)
=5×3.8
=5×（4-0.2）
=5×4-5×0.2
=20-1
=19
- 4楼网友：往事隔山水
- 2021-11-11 16:50
2.5×(1.9+1.9+3.8)
=2.5×(1.9+1.9+1.9+1.9)
=2.5×4×1.9
=10×1.9
=19
=2.5×(1.9+1.9+1.9+1.9)
=2.5×4×1.9
=10×1.9
=19
我要举报
如以上回答内容为低俗、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！
点此我要举报以上问答信息
大家都在看
推荐资讯