一、口算。
$76+28=$
$800-20=$
$150-23=$
$400×7=$
$690÷23=$
$13+87=$
$38+45=$
$110÷5=$
$53×3=$
$182÷2=$
$7×60=$
$8×26=$
$48÷12=$
$27+56=$
$90+270=$
$40×6=$
$242÷2=$
$749÷7=$
$365÷5=$
$4×212=$
$230×3=$
$24×2=$
$450÷2=$
$86-57=$
$76+28=$
$800-20=$
$150-23=$
$400×7=$
$690÷23=$
$13+87=$
$38+45=$
$110÷5=$
$53×3=$
$182÷2=$
$7×60=$
$8×26=$
$48÷12=$
$27+56=$
$90+270=$
$40×6=$
$242÷2=$
$749÷7=$
$365÷5=$
$4×212=$
$230×3=$
$24×2=$
$450÷2=$
$86-57=$
答案
1.104
2.780
3.127
4.2800
5.30
6.100
7.83
8.22
9.159
10.91
11.420
12.208
13.4
14.83
15.360
16.240
17.121
18.107
19.73
20.848
21.690
22.48
23.225
24.29
2.780
3.127
4.2800
5.30
6.100
7.83
8.22
9.159
10.91
11.420
12.208
13.4
14.83
15.360
16.240
17.121
18.107
19.73
20.848
21.690
22.48
23.225
24.29
二、用竖式计算。
$76÷18=$
$840÷78=$
$168÷31=$
$926÷21=$
$448÷16=$
$360÷53=$
$76÷18=$
$840÷78=$
$168÷31=$
$926÷21=$
$448÷16=$
$360÷53=$
答案
1.4……4
2.10……60
3.5……13
4.44……2
5.28
6.6……42
2.10……60
3.5……13
4.44……2
5.28
6.6……42
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