简便计算 5.4×0.68+3.4×2×0.46 23.9—0.6×0.6-0.64 13÷12.5 7.8×4.86÷3.95.4×0.68+3.4×2×0.46 ,23.9—0.6×0.6-0.64 ,13÷12.5 ,7.8×4.86÷3.9 快一点啊!
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/08 09:35:47
![简便计算 5.4×0.68+3.4×2×0.46 23.9—0.6×0.6-0.64 13÷12.5 7.8×4.86÷3.95.4×0.68+3.4×2×0.46 ,23.9—0.6×0.6-0.64 ,13÷12.5 ,7.8×4.86÷3.9 快一点啊!](/uploads/image/z/760557-21-7.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97+5.4%C3%970.68%2B3.4%C3%972%C3%970.46+23.9%E2%80%940.6%C3%970.6-0.64+13%C3%B712.5+7.8%C3%974.86%C3%B73.95.4%C3%970.68%2B3.4%C3%972%C3%970.46+%EF%BC%8C23.9%E2%80%940.6%C3%970.6-0.64+%EF%BC%8C13%C3%B712.5+%EF%BC%8C7.8%C3%974.86%C3%B73.9+%E5%BF%AB%E4%B8%80%E7%82%B9%E5%95%8A%EF%BC%81)
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简便计算 5.4×0.68+3.4×2×0.46 23.9—0.6×0.6-0.64 13÷12.5 7.8×4.86÷3.95.4×0.68+3.4×2×0.46 ,23.9—0.6×0.6-0.64 ,13÷12.5 ,7.8×4.86÷3.9 快一点啊!
简便计算 5.4×0.68+3.4×2×0.46 23.9—0.6×0.6-0.64 13÷12.5 7.8×4.86÷3.9
5.4×0.68+3.4×2×0.46 ,
23.9—0.6×0.6-0.64 ,
13÷12.5 ,
7.8×4.86÷3.9
快一点啊!
简便计算 5.4×0.68+3.4×2×0.46 23.9—0.6×0.6-0.64 13÷12.5 7.8×4.86÷3.95.4×0.68+3.4×2×0.46 ,23.9—0.6×0.6-0.64 ,13÷12.5 ,7.8×4.86÷3.9 快一点啊!
5.4×0.68+3.4×2×0.46
=5.4x0.68+6.8x0.46
=5.4x0.68+0.68x4.6
=(5.4+4.6)x0.68
=10x0.68
=6.8
23.9—0.6×0.6-0.64
=23.9-(0.36+0.64)
=23.9-1
=22.9
13÷12.5
=(13x8)÷(12.5x8)
=104÷100
=1.04
7.8×4.86÷3.9
=4.6x7.8÷3.9
=4.6x2
=9.2