四年级数学下册简便计算专项练习题89文档格式.docx
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39+39×
69
601×
67-67
52×
58+48×
58
85×
1001
(8+4)
280×
1001-280
85+999×
85
56×
36×
195-95×
36
87+87×
39
101×
53-53
76×
29+24×
29
81×
(20+4)
179×
1001-179
32+9×
32
16×
125
23×
179-79×
23
(8+6)
38+38×
401×
59-59
12×
30+88×
30
87×
119×
101-119
98+9×
98
119-19×
72
(8+2)
81+81×
59
99-99
97+84×
97
63×
129×
11-129
86+999×
86
24×
37×
153-53×
37
92+92×
19
201×
76-76
82×
54+18×
54
69×
(40+4)
362×
1001-362
46+99×
46
48×
111-11×
24
(8+8)
73+73×
89
80-80
59×
49+41×
49
21×
(16+4)
193×
101-193
72+999×
32×
86×
131-31×
41+41×
90-90
99×
12+1×
12
30×
(24+4)
331×
101-331
77+99×
77
64×
22×
189-89×
22
55+55×
52-52
34+14×
34
34×
(28+4)
281×
101-281
90×
188-88×
90
21+21×
13-13
19+13×
53×
(36+4)
302×
1001-302
81+99×
81
88×
112-12×
88
94+94×
501×
72-72
33×
16+67×
16
26×
218×
101-218
34+99×
8×
141-41×
89+89×
34-34
25+28×
65×
147×
1001-147
52+999×
52
80×
135-35×
43+43×
901×
46-46
55×
66+45×
66
49×
465×
1001-465
97+99×
173-73×
20+20×
44-44
27×
17+73×
17
84×
435×
11-435
90+99×
50×
184-84×
50
301×
45×
97+55×
47×
599×
1001-599
18+999×
18
44×
140-40×
44
52+52×
69-69
20×
92+80×
92
29×
243×
1001-243
74+999×
74
40×
138-38×
48
11+11×
54-54
43×
39+57×
11×
384×
101-384
35+999×
35
133-33×
80
91+91×
79
1001×
82-82
30+45×
35×
203×
11-203
83+999×
125-25×
14+14×
42-42
18×
41+82×
41
94×
321×
11-321
196-96×
55
12+12×
87-87
67×
63+33×
63
(12+4)
337×
1001-337
91+9×
91