100.37×3.4+1.7×109.26简算
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100.37×3.4+1.7×109.26简算
![100.37×3.4+1.7×109.26简算](/uploads/image/z/983562-42-2.jpg?t=100.37%C3%973.4%2B1.7%C3%97109.26%E7%AE%80%E7%AE%97)
原式
=200.74×1.7+1.7×109.26
=1.7×(200.74+109.26)
=1.7×310
=1.7×(300+10)
=1.7×300+1.7×10
=510+17
=527
=200.74×1.7+1.7×109.26
=1.7×(200.74+109.26)
=1.7×310
=1.7×(300+10)
=1.7×300+1.7×10
=510+17
=527