3.33*1.6+6.66*4.2怎么简便运算
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![3.33*1.6+6.66*4.2怎么简便运算](/uploads/image/z/70261-61-1.jpg?t=3.33%2A1.6%2B6.66%2A4.2%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
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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*(...
全部展开
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