人教版四年级数学下册运算定律练习题98文档格式.docx
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151×
4+151×
6=151×
(____+____)
(55+47)×
a=____×
____+____×
二、下面各题怎样简便怎样计算。
65+32+2877+99+23
75×
25×
425×
(4+8)
734-19-81893+36-693
72×
6+94×
722400÷
4÷
25
288+79+82140+126+30
9000÷
2÷
50025×
95×
40
66+58+34+42220+120+880+480
64×
25999×
69+69
153-12-30-58926-326-74-26
106×
1425×
4818×
401
6+7+8+…+23+24+25
1020×
84-20×
8456+99×
56
4+6+8+…+18+20+22
28-27+26-25+…+12-11+10-9
27+37-40+63+73
(18+27)+53=18+(____+____)
330+(370+99)=(330+____)+____
____+93=93+10
414-60-40=414〇(60+____)
95×
33=33×
20×
9×
5=20×
(9×
(5×
27)=(____×
681×
4+681×
6=681×
(24+73)×
b=____×
75+46+4449+38+11
39×
50×
220×
(5+10)
737-54-46323-82-223
28×
33+67×
28600÷
50
388+92+20863+371+27
1000÷
500÷
25×
29×
200
16+71+84+29150+20+880+550
40×
125199×
39+39
146-31-20-49919-319-17-83
404×
4018×
206
3+4+5+…+20+21+22
1007×
73-7×
7323+99×
23
5+7+9+…+19+21+23
50-49+48-47+…+34-33+32-31
44+70+17+30+56
(31+13)+77=31+(____+____)
100+(800+49)=(100+____)+____
____+52=52+48
115-30-70=115〇(30+____)
82×
26=26×
80×
6×
7=80×
(6×
50×
(2×
23)=(____×
144×
7+144×
3=144×
(64+43)×
x=____×
98+21+7946+67+14
21×
20×
520×
925-40-60562-42-262
74×
744700÷
50÷
2
834+93+60760+669+30
4000÷
25050×
88×
20
80+74+20+26160+200+700+240
56×
259×
18+18
954-22-17-61589-489-38-62
506×
1825×
5615×
106
5+6+7+…+22+23+24
1093×
94-93×
9451+999×
51
7+9+11+…+21+23+25
43-42+41-40+…+27-26+25-24
38+39+39+61+62
(79+47)+33=79+(____+____)
410+(190+95)=(410+____)+____
____+53=53+39
345-75-25=345〇(75+____)
55×
15=15×
8×
3=70×
(8×
12)=(____×
121×
6+121×
4=121×
(37+65)×
m=____×
70+45+1575+94+15
5×
2025×
883-44-56587+79-187
83×
35+65×
835200÷
10÷
10
409+21+57958+147+22
20÷
50500×
55×
82+70+18+30220+230+770+180
88×
2599×
28+28
623-29-15-56998-398-20-80
302×
1925×
2012×
503
160×
97-60×
9791+99×
91
1+3+5+…+15+17+19
20-19+18-17+…+4-3+2-1