简便计算：2.5X3.6、16.3X9.9、6.2X11+6.2X88+6.2、45.6x6.7+4.56x33
答案:3 悬赏:50 手机版
解决时间 2021-11-13 17:57
- 提问者网友：
- 2021-11-13 03:11
简便计算：2.5X3.6、16.3X9.9、6.2X11+6.2X88+6.2、45.6x6.7+4.56x33
最佳答案
- 五星知识达人网友：一秋
- 2021-11-13 03:37
2.5×3.6
=2.5×4×0.9
=10×0.9
=9
16.3×9.9
=16.3×(10-0.1)
=16.3×10-16.3×0.1
=163-1.63
=161.37
6.2×11+6.2×88+6.2
=6.2×(11+88+1)
=6.2×100
=620
45.6×6.7+4.56×33
=4.56×67+4.56×33
=4.56×(67+33)
=4.56×100
=456
=2.5×4×0.9
=10×0.9
=9
16.3×9.9
=16.3×(10-0.1)
=16.3×10-16.3×0.1
=163-1.63
=161.37
6.2×11+6.2×88+6.2
=6.2×(11+88+1)
=6.2×100
=620
45.6×6.7+4.56×33
=4.56×67+4.56×33
=4.56×(67+33)
=4.56×100
=456
全部回答
- 1楼网友：往事埋风中
- 2021-11-13 05:56
2.5X3.6 ---化成二分之五乘以三点六
16.3X9.9---化成16.3乘以（10-0.1）
6.2X11+6.2X88+6.2---6.2（11+88+1）---6.2*100
45.6x6.7+4.56x33---4.56(67+33)---4.56*100
16.3X9.9---化成16.3乘以（10-0.1）
6.2X11+6.2X88+6.2---6.2（11+88+1）---6.2*100
45.6x6.7+4.56x33---4.56(67+33)---4.56*100
- 2楼网友：十年萤火照君眠
- 2021-11-13 04:21
2.5X3.6、
=2.5X0.4X9
=1X9
=9
16.3X9.9
=16.3X(10-1)
=16.3X10-16.3X1
=163-16.3
=161.37
6.2X11+6.2X88+6.2
=6.2X(11+88+1)
=6.2X100
=620
45.6x6.7+4.56x33
=45.6x6.7+45.6x3.3
=45.6x(6.7+3.3)
=45.6x10
=456
=2.5X0.4X9
=1X9
=9
16.3X9.9
=16.3X(10-1)
=16.3X10-16.3X1
=163-16.3
=161.37
6.2X11+6.2X88+6.2
=6.2X(11+88+1)
=6.2X100
=620
45.6x6.7+4.56x33
=45.6x6.7+45.6x3.3
=45.6x(6.7+3.3)
=45.6x10
=456
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