一、口算。
$112÷2= $
$81 - 18 = $
$23×40= $
$850÷50= $
$290×2= $
$94 - 49 = $
$600÷12= $
$70×24= $
$112÷2= $
56
$208×4= $832
$480÷40= $12
$81 - 18 = $
63
$960÷80= $12
$60×80= $4800
$23×40= $
920
$8000÷200= $40
$112 + 78 = $190
$850÷50= $
17
$200÷50= $4
$1000÷100= $10
$290×2= $
580
$120×6= $720
$420 - 16 = $404
$94 - 49 = $
45
$260÷13= $20
$180×5= $900
$600÷12= $
50
$15×20= $300
$120÷15= $8
$70×24= $
1680
$84 - 28 = $56
$180÷30= $6
答案
一、56 832 12
63 12 4800
920 40 190
17 4 10
580 720 404
45 20 900
50 300 8
1680 56 6
63 12 4800
920 40 190
17 4 10
580 720 404
45 20 900
50 300 8
1680 56 6
二、用竖式计算。
$69÷13$ $886÷79$ $328÷31$
$405÷23$ $784÷63$ $834÷56$
$69÷13$ $886÷79$ $328÷31$
$405÷23$ $784÷63$ $834÷56$
答案
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