北师大版四年级上册数学计算题专项训练Word格式文档下载.doc
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85
二、竖式:
三位数除以两位数、验算
336÷
21858÷
39918÷
27888÷
37645÷
32432÷
46
966÷
23731÷
79980÷
28828÷
36689÷
34618÷
88
372÷
45294÷
29328÷
42395÷
56765÷
74840÷
35
630÷
31961÷
19
三、简便计算
1.加法交换结合律:
48+25+175125+75+320128+89+723153+38+162
57+288+143378+527+73167+289+3358+39+42+61
158+395+105822+197+7875+34+125+366578+143+22+57
129+235+171+165163+32+137+268
2.乘法交换结合律
(一):
25×
125×
32(15×
25)×
438×
435×
2×
5
(60×
4(125×
5)×
80025×
17×
4(25×
125)×
(8×
4)
38×
8×
35×
289×
2125×
5×
29×
125
43×
4125×
50×
242×
860×
4
825×
437×
3.乘法交换结合律
(二):
3224×
125125×
56125×
72125×
1648×
125
125×
6425×
3625×
3225×
1625×
2425×
28
4.乘法分配律
(一):
34×
72+34×
287×
48+7×
5235×
37+65×
3785×
82+82×
15
97+25×
376×
25+25×
2416×
17+16×
2327×
36+27×
64
73×
36+36×
2764×
23+36×
2343×
36+57×
3619×
67+19×
33
57×
35+43×
3518×
72+72×
18246×
46+46×
5431×
69+31×
31
13-34×
3
5.乘法分配律
(二):
99+3875×
299+75102×
99+10239+9×
39
99×
128+12827+99×
2734+199×
3435×
99+35
6.乘法分配律(三):
(8+80)(80+4)×
258×
(125+9)(20+4)×
25
32×
(200+3)(125+17)×
80(100+2)×
99102×
(100-1)
(40+4)(25+100)×
499×
(100+1)(125+40)×
8
(125+25)×
899×
(100+7)8×
(125+7)(30+25)×
4
7.乘法分配律(四):
46×
10248×
10199×
46102×
42103×
31107×
16
108×
15125×
880088×
102102×
9939×
10125×
41
48×
101201×
24302×
43102×
13
8.商不变的规律:
300÷
254000÷
125240÷
5600÷
253200÷
50400÷
25
150÷
25800÷
252000÷
1259000÷
四、混合运算
672-672÷
12×
7987÷
(345-298)×
65210×
[520÷
(240-227)]
340-240÷
20×
530×
(320-170)÷
90[458-(85+28)]÷
23
630×
[840÷
(240-212)]408÷
[512-(178+283)]864÷
[(27-23)×
12]
(105×
12-635)÷
25240-140÷
3360-260÷
5
104×
48+272÷
1635+65÷
5-20240+180÷
30×
2
450÷
30+20×
3146-(34+420÷
70)624÷
[(27-14)×
4]
(77-21÷
7)×
691(165-65÷
5840÷
[(120+195)÷
15]
[557-(186+26)]÷
23375÷
(25-10)×
1515×
27-200÷
8
(324-285)×
12÷
26(160-48÷
12)×
4336÷
[(36-29)×
6]
62×
(300-145÷
5)35×
50(36×
54-984)÷
24
[90÷
(67-52)]182÷
[36÷
(12+6)]640÷
[(96-80)×
6