人教版四年级数学下册计算题大全80Word下载.docx
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20=____×
(____×
____)
(4)(25+50)×
40=40×
____+40×
____
(5)(a+70)×
5=____×
____+____×
四、用简便方法计算下面各题。
246×
5+554×
5201×
35
206×
20×
52×
50×
50
62+30+5040+18+30
30×
250×
(2+4)
819-62-38391-27-291
58×
57+43×
588900÷
20÷
5
805+41+5920+871+30
9000÷
4÷
250500×
54×
2
89+80+11+20120+240+560+780
48×
125999×
43+43
319-30-17-53861-661-14-86
301×
1825×
2017×
104
4+5+6+…+21+22+23
1098×
34-98×
3456+199×
56
4+6+8+…+18+20+22
3.04+4.2+1.87.76-2.5-2.5
4.65-1.7+2.359.8+0.67+0.33+16.2
4.7+5.3+7.19.04-3.52-1.48
82+5.8+9.7+555.95+2.49+7.51
5.28+1.19+4.724.77+5.2+3.23+4.8
4.3+2.42+5.58+4.77.75+8.69-5.75
4.5+0.8=7+6.2=30.6-9=0.55-0.35=
6.9+0.2=6.3+4=8.7+0.6=0.94+0.13=
411+1894.71+2.2274.76-5.34184.6+93.4
45×
54846×
49357÷
21420÷
15
(1)5.6+2.66+4.4=5.6+____+2.66
(2)(3.43+4.6)+5.4=____+(____+____)
(3)36×
2=____×
(4)(125+90)×
8=8×
____+8×
(5)(b+30)×
4=____×
271×
8+529×
8202×
71
462×
2025×
99×
4
66+29+6174+48+16
520×
(5+10)
673-55-45369+52-269
55×
7+93×
556200÷
162+24+77632+625+28
2000÷
505×
77×
200
61+71+39+29280+360+640+520
72×
25999×
45+45
241-16-13-71663-263-80-20
403×
1925×
4014×
505
1094×
63-94×
6398+9×
98
1.82+1.9+7.17.78-2.3-3.7
4.78-2.2+4.227.1+0.82+0.18+13.9
4.6+4.1+2.17.96-2.77-1.23
21+6.5+7.2+829.35+2.45+7.55
0.77+4.63+6.233.92+8.2+6.08+1.8
4.5+2.64+3.36+4.59.23+6.36-7.23
2.3+0.8=4.8+9.2=44.6-9=0.73+0.21=
6.6-0.3=5.6-2.2=8.1+5=0.66+0.19=
587+2314.4-3.0444.97-7.06160.9-42.4
63221×
19483÷
23462÷
42
(1)1.6+8.35+8.4=1.6+____+8.35
(2)(3.36+2.1)+7.9=____+(____+____)
(3)28×
(4)(25+10)×
(5)(n+70)×
561×
4+39×
499×
43
438×
2×
504×
92×
25
18+32+3839+47+11
69×
25×
425×
(4+8)
383-15-85593+63-193
38×
78+22×
387200÷
25
722+28+37269+631+11
1000÷
25÷
40100×
58×
10
74+63+26+37200+320+580+800
27+27
919-13-32-55582-382-42-58
505×
1218×
101
1+2+3+…+18+19+20
151×
84-51×
8469+999×
69
7+9+11+…+21+23+25
5.96+2