苏教版四年级数学下册运算定律专项练习题7Word文件下载.docx
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苏教版四年级数学下册运算定律专项练习题7Word文件下载.docx
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2594×
18×
125
81+21+79874+902
48+67+12+33704+483
73+74+75+76+7747+53+253
1+2+3+4+5+6+7+8+9+10
13×
25×
825×
31×
226×
401
67×
46+33×
4677×
(60+2)102×
14
三、下面各题,怎样算简便就怎样算。
635-133-167244-80-20
18+15=15+____
74×
92=____〇×
74
49+35+25=49〇(____〇____)
66×
45×
2=66×
(14×
9)=(5×
20×
(21×
5)=21×
(75+95)×
2=75×
____+95×
69×
16+32×
16=(69+____)×
11×
22+11×
58=____〇(____〇____)
58×
(47+13)=____〇____〇____〇____
989+60212×
25202×
21
109×
93+207×
109(14+4)×
2534×
4×
55+47+53497+303
17+15+83+185503+615
23+24+25+26+2717+12+483
4+6+8+10+12+14+16+18+20+22
10×
85×
27×
817×
601
22×
55+78×
5549×
(40+4)402×
911-52-348299-88-12
48+93=93+____
93=____〇×
10
10+22+48=10〇(____〇____)
72×
2=72×
(8×
12×
(11×
5)=11×
(39+79)×
5=39×
____+79×
78×
7+21×
7=(78+____)×
28+12×
42=____〇(____〇____)
98×
(50+20)=____〇____〇____〇____
120+80316×
11
18+482×
72(58+6)×
572×
88+26+74564+302
39+22+21+178904+180
74+75+76+77+7865+32+635
2+4+6+8+10+12+14+16+18+20
35×
612×
704
47×
62+53×
6248×
(50+2)403×
16
573-122-378117-86-14
58+14=14+____
24×
80=____〇×
24
62+10+70=62〇(____〇____)
46×
4=46×
(16×
(19×
5)=19×
(49+31)×
4=49×
____+31×
73×
12+11×
12=(73+____)×
38+5×
62=____〇(____〇____)
55×
(45+25)=____〇____〇____〇____
722+20236×
25102×
19
34×
101+199×
34(4+8)×
593×
41+74+26446+201
12+72+68+28202+113
51+52+53+54+5555+104+545
2×
45×
9×
214×
604
26×
85+74×
8561×
(60+1)903×
17
817-102-198158-49-51
81+75=75+____
35=____〇×
12
96+37+53=96〇(____〇____)
97×
8=97×
(18×
7)=(5×
(92+85)×
5=92×
____+85×
44×
4+43×
4=(44+____)×
19+20×
51=____〇(____〇____)
68×
(41+59)=____〇____〇____〇____
192+60320×
96×
34+366×
96(40+2)×
526×
46+67+33811+603
10+73+80+127602+712
30+31+32+33+34189+24+211
7+8+9+10+11+12+13+14+15+16
820×
102
45+32×
4578×
(20+5)402×
710-15-185215-84-16
49+56=56+____
60=____〇×
47
77+30+50=77〇(____〇____)
87×
8=87×
(6×
15)=(5×
16×
(7×
5)=7×
(62+45)×
6=62×
____+45×
17+37×
17=(73+____)×
36+10×
64=____〇(____〇____)
63×
(22+68)=____〇____〇____〇____
196+60380×
25101×
28×
63+337×
28(52+2)×
561×
14+35+65998+204
28+52+62+48603+361
44+45+46+47+4837+12+563
7+9+11+13+15+17+19+21+23+25
625×
19×
219×
901
78+57×
7866×
(50+4)104×
22
764-189-111238-49-51
21+15=15+____
40=____〇×
72
51+39+51=51〇(____〇____)
36×
6=36×
(95+40)×
8=95×
____+40×
18+60×
18=(36+____)×
18+2×
(43+47)=____〇____〇____〇____
226+70312×
46
53×
89+411×
53(46+8)×
2543×
10+82+18948+601
42+38+38+162302+897
50+51+52+53+54115+43+585
8+9+10+11+12+13+14+15+16+17
29×
101
39×
84+61×
8431×
(10+2)504×
28
685-19-481202-18-82
87+32=32+____
30×
61=____〇×
30
81+20+70=81〇(____〇____)
4=16×
21)=(5×
(22+57)×
5=22×
____+57×
2+13×
2=(87+____)×
32+2×
48=____〇(____〇____)
40×
(39+31)=____〇____〇____〇____
196+60164×
30
56×
56(36+4)×
570×
75+88+12479+204
50+16+30+84101+251
63+64+65+66+67182+48+718
6+7+8+9+10+11+12+13+14+15
4125×
212×
95+74×
9516×
(20+3)203×
628-129-371205-49-51
97+35=35+____
93×
29=____〇×
93
10+25+75=10〇(____〇____)
81×
8=81×
(17×
5)=17×
(24+30)×
4=24×
____+30×
86×
14+25×
14=(86+____)×
12+16×
33×
(22+58)=____〇____〇____〇____
307+40188×
27
91×
187+313×
91(56+4)×
596×
5
75+17+83354+401
21+36+59+164305+871
62+63+64+65+6613+38+187
415×
503
57×
79+43×
7983×
(60+4)203×
742-163-37132-20-80
98+65=65+____
31=____〇×
82+39+41=82〇(____〇____)
77×
2=77×
(20×
19)=(5×
(9×
5)=9×
(15+77)×
8=15×
____+77×
82×
4+22×
4=(82+____)×
15+16×
85=____〇(____〇____)
(39+51)=____〇____〇____〇____
704+40144×
13
156+244×
25(20+4)×
2529×
17+64+36750+503
26+56+74+44305+230
68+69+70+71+7241+89+859
23×
620×
73+18×
7376×
(60+3)502×
774-38-262185-49-51
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