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一、口算。
$65×8=
$725÷5=
$402-19=
$400÷8=
$606÷6=
$37+73=
$720÷8=
$400÷200=
$65×8=
520
$ $127×2=254
$ $40×(15+35)=2000
$$725÷5=
145
$ $350÷70=5
$ $400÷25÷8=2
$$402-19=
383
$ $45×30=1350
$ $240÷20+120=132
$$400÷8=
50
$ $720÷4=180
$ $105-15×3=60
$$606÷6=
101
$ $86-27=59
$ $99+10÷10=100
$$37+73=
110
$ $500÷25=20
$ $8×99+8=800
$$720÷8=
90
$ $44+27=71
$ $700-236-164=300
$$400÷200=
2
$ $18×30=540
$ $(105-15)÷45=2
$答案
520 254 2000
145 5 2
383 1350 132
50 180 60
101 59 100
110 20 800
90 71 300
2 540 2
145 5 2
383 1350 132
50 180 60
101 59 100
110 20 800
90 71 300
2 540 2
二、用竖式计算。
$560÷75$ $132÷32$ $396÷21$
$543÷33$ $217÷26$ $532÷38$
$560÷75$ $132÷32$ $396÷21$
$543÷33$ $217÷26$ $532÷38$
答案
7······35
4······4
18······18
16······15
8······9
14
4······4
18······18
16······15
8······9
14
