作业帮3.33*1.6+6.66*4.2怎么简便运算
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 10:52:08
3.33*1.6+6.66*4.2怎么简便运算
3.33*1.6+6.66*4.2怎么简便运算
3.33*1.6+6.66*4.2怎么简便运算
3.33*1.6+6.66*4.2
=3.33×2×0.8+6.66×4.2
=6.66×0.8+6.66×4.2
=6.66×（0.8+4.2）
=6.66×5
=3.33×（2×5）
=33.3
3.33*1.6+6.66*4.2
=3.33*1.6+(2*3.33)*4.2
=3.33*1.6+3.33*(4.2*2)
=3.33*1.6+3.33*8.4
=3.33*(1.6+8.4)
=3.33*10
=33.38.8*43.2-33.2*5.9-33.2*2.98.8*43.2-33.2*5.9-33.2*2.9
=8.8*（...
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3.33*1.6+6.66*4.2
=3.33*1.6+(2*3.33)*4.2
=3.33*1.6+3.33*(4.2*2)
=3.33*1.6+3.33*8.4
=3.33*(1.6+8.4)
=3.33*10
=33.3
收起
3.33x(1.6＋2x4.2)\7
=33.3
原式＝6.66*0.8 6.66*4.2=6.66*5=6.66*10/2=33.3
原式=2*3.33*0.8+6.66*4.2.
=6.66*0.8+6.66*4.2
=6.66(0.8+4.2)
=6.66*5.
=33.3