苏教版四年级数学下册乘法运算定律练习题精选126Word文档下载推荐.docx
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116+67×
11621×
(60+4)903×
18
77×
124+176×
77(48+6)×
2598×
4×
25
三、计算下面各题,并应用乘法交换律进行验算。
43×
2717×
5384×
41
65=65×
(4×
15)=(5×
(3×
5)=3×
(95+62)×
9=95×
____+62×
42×
20+39×
20=(42+____)×
8×
45+8×
55=____〇(____〇____)
54×
(37+43)=____〇____〇____〇____
16×
35×
7×
826×
501
66+58×
6646×
(40+2)904×
28
30+370×
42(22+8)×
2542×
125
50×
7124×
1711×
87
38×
79=79×
(14×
21)=(5×
2×
(15×
5)=15×
(38+85)×
3=38×
____+85×
20+94×
20=(25+____)×
3×
42+3×
18=____〇(____〇____)
(17+43)=____〇____〇____〇____
2125×
625×
502
81×
70+19×
7096×
(60+1)104×
73×
67+433×
73(6+6)×
2552×
18×
32×
3227×
4223×
62
11×
37=37×
(6×
(5×
5)=5×
(41+34)×
4=41×
____+34×
51×
19+52×
19=(51+____)×
9×
11+9×
79=____〇(____〇____)
95×
(37+53)=____〇____〇____〇____
8125×
213×
103
47+49×
4759×
(10+2)203×
17
58×
173+327×
58(2+4)×
2517×
2437×
7511×
42
95=95×
3)=(5×
12×
(10+83)×
4=10×
____+83×
90×
12+33×
12=(90+____)×
13×
50+13×
10=____〇(____〇____)
(23+57)=____〇____〇____〇____
825×
21×
621×
901
35+19×
3596×
(60+4)403×
30
47×
63+237×
47(44+4)×
2594×
22×
9464×
5093×
86
62×
27=27×
13)=(5×
10×
(21×
5)=21×
(19+73)×
2=19×
____+73×
6+63×
6=(62+____)×
18+13×
82=____〇(____〇____)
84×
(23+47)=____〇____〇____〇____
85×
29×
504
71+85×
7118×
(10+2)302×
23×
177+223×
23(54+4)×
518×
86×
5839×
8811×
85
31×
19=19×
(10×
(13×
5)=13×
(78+74)×
3=78×
____+74×
72×
13+30×
13=(72+____)×
20×
49+20×
11=____〇(____〇____)
(18+52)=____〇____〇____〇____
616×
66×
99+34×
9958×
(20+5)903×
14
85×
150+350×
85(38+6)×
575×
52×
3571×
9686×
43
80=80×
(8×
(53+64)×
9=53×
____+64×
9+24×
9=(31+____)×
42+4×
58=____〇(____〇____)
65×
17×
39×
623×
101
116+89×
11673×
(50+4)902×
10
99×
169+231×
99(44+8)×
2541×
56×
1594×
8767×
32
98=98×
5)=(5×
(11+80)×
7=11×
____+80×
82×
13+87×
13=(82+____)×
14×
12+14×
(30+50)=____〇____〇____〇____
65×
19×
219×
104
44×
108+56×
10882×
(10+5)201×
29
183+217×
10(46+8)×
515×
5
74×
4944×
2767×
72
67×
53=53×
(33+45)×
3=33×
____+45×
83×
14+32×
14=(83+____)×
43+16×
17=____〇(____〇____)
(50+10)=____〇____〇____〇____
424×
802
68+33×
6889×
(40+2)302×
19
61×
147+253×
61(32+6)×
554×
5381×
4490×
97×
48=48×
(12×
(19×
5)=19×
(94+35)×
5=94×
____+35×
70×
15+56×
15=(70+____)×
11+17×
89=____〇(____〇____)
63×
(36+34)=____〇____〇____〇____
45×
225×
702
49×
43+51×
4336×
(50+5)502×
38+462×
84(16+2)×
2510×
三、计算下面各题,并应用乘法