人教版四年级数学下册乘除法简便计算 531文档格式.docx
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232×
78-78×
2
69×
25057×
7+57×
993
20×
25035×
999+35
72×
1251001×
84-84
42×
302106×
21×
29965×
21+65×
979
87×
12532×
999+32
5200÷
251001×
17-17
40000÷
816×
89-89×
2035×
74-74×
5
36×
25087×
65+87×
935
32×
2592×
999+92
80×
125101×
32-32
14×
10235×
85-85×
11×
29946×
68+46×
932
4×
46×
999+14
2300÷
76-76
51000÷
833×
68-68×
53×
200102×
25077×
58+77×
42
2522×
999+22
16×
93-93
33×
302103×
26-26×
12×
9942×
35+42×
965
57×
12598×
999+98
1900÷
89-89
81000÷
814×
25-25×
4
23×
2018×
8
82×
2542×
15+42×
85
2588×
999+88
36-36
41×
10213×
56-56×
29982×
81+82×
19
75×
12545×
999+45
1400÷
31-31
52000÷
828×
83-83×
26×
20109×
18-18×
9
37×
25096×
14+96×
986
2526×
999+26
59-59
24×
30312×
25×
19917×
67+17×
33
83×
2536×
999+36
4000÷
99-99
88000÷
818×
52-52×
200104×
34-34×
47×
2586×
24+86×
76
25032×
49-49
103107×
81-81×
7
19998×
68+98×
29×
12528×
999+28
4800÷
2511×
97-97
43000÷
835×
36-36×
55×
228×
54-54×
91×
25041×
26+41×
74
2573×
999+73
64×
71-71
10337×
93-93×
19987×
55+87×
45
35×
25063×
999+63
7700÷
96-96
70000÷
8105×
86-86×
77×
236×
25094×
37+94×
963
2589×
999+89
15-15
20224×
35-35×
15×
9914×
37+14×
63
81×
25033×
99+33
8200÷
19-19
83000÷
824×
45-45×
73×
200109×
52×
2548×
20+48×
80
25012×
99+12
46-46
20114×
71-71×
19918×
81+18×
68×
25054×
999+54
1100÷
63-63
48000÷
14-14×
2109×
34×
2559×
50+59×
50
28×
2578×
999+78
54-54
30318×
19984×
35+84×
65
2564×
999+64
5400÷
10000÷
226×
58-58×
17+88×
983
2576×
99+76
56×
92-92
30329×
22×
29923×
61+23×
39
2539×
99+39
500÷
15000÷
65-65×
24-24×
25074×
13+74×
987
25026×
99+26
33-33
10333×
94-94×
25+72×
975
12531×
99+31
7000÷
76000÷
839×
27-27×
63×
20108×
47-47×
31×
2538×
38+38×
62
999+86
24-24
30115×
43-43×
52+46×
948
43×
2587×
99+87
21000÷
8109×
2034×
62×
2582×
65+82×
2583×
999+83
41-41
10334×
69-69×
29997×
38+97×
12539×
4600÷
82-82
53000÷
834×
2036×
92×
22+88×
978
25098×
38-38
202108×
72-72×
9986×
76+86×
24
7×
2568×
99+68
7400÷
65-65
12000÷
815×
91-91×
99×
20032×
63-63×