www.fltk.net > 用竖式计算:312×7=9×430=290×5=625×5=7×706=914×2

用竖式计算:312×7=9×430=290×5=625×5=7×706=914×2

430×3=129025×4=100406×5=2030162×7=1134

(1)430×12=5160; 4 3 0×1 2 . 8 6 4 3 5 1 6 0(2)8.37+9.58=17.95; 8.3 7+9.5 8. 1 7.9 5 (3)430÷3=9…1; 1 4 3 34 3 0 3 1 3 1 2 1 0 91验算: 1 4 3× 3 . 4 2 9 + 1 4 3 0(4)284÷4=71; 7 1 42 8 4 2 8 4 40验算: 7 1× 4

430 X 60 -------------- 25800

430除以71=用竖式计算 计算: 430÷71=6.056338028169

430×22=9460

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