5.9×6.7+3.6×68+12.7X3.3简便计算
答案:1 悬赏:40 手机版
解决时间 2021-03-05 13:45
- 提问者网友：兔牙战士
- 2021-03-04 13:44
5.9×6.7+3.6×68+12.7X3.3简便计算
最佳答案
- 五星知识达人网友：平生事
- 2021-03-04 13:54
解：5.9×6.7+3.6×68+12.7X3.3
=5.9×6.7+3.6×68+(5.9+6.8)X3.3
=5.9x(6.7+3.3)+3.6x68+6.8x3.3
=5.9x10+3.6x10x6.8+6.8x3.3
=59+6.8x(36+3.3)
=59+(7-0.2)x39.3
=59+275.1-7.86
=51.14+275.1
=326.24
=5.9×6.7+3.6×68+(5.9+6.8)X3.3
=5.9x(6.7+3.3)+3.6x68+6.8x3.3
=5.9x10+3.6x10x6.8+6.8x3.3
=59+6.8x(36+3.3)
=59+(7-0.2)x39.3
=59+275.1-7.86
=51.14+275.1
=326.24
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