5/9十4/9x3/4的简便方法？ 4200 25x6
更新时间：2021-09-16 13:21:57 • 作者：MONICA •阅读 8334
5/9x3/4+5/9x1/4用简算
5/9x3/4+5/9x1/4
=5/9x(3/4+1/4)
=5/9x1
=5/9
5/2x4x3/4怎么简便
=5/2×（4×3/4)
=5/2×3
=15/2
=7又1/2
5分之4x9十5分之4用简便方法计算算
=（1+9）×4／5
=10×4／5
=8
9x5十9简便方法计算
9x5十9简便方法计算
=9×5+9
=9×（5+1）
=9×6
=54