1/2÷2/3= 3/8÷5/8 = 9÷3/4 =
2/7÷2/7 = 6÷ 1/6= 3/5÷ 1/3=
1/3÷ 1/4= 2/5÷5= 5/ 12÷ 1/3=
1÷ 10/ 1 1= 5/ 12÷ 1/8 = 9/ 10÷3/4=
2/9÷3/ 18= 1/4÷3= 12/ 13÷26=
19/6÷3/2= 2/3÷7/2= 6/7÷ 14/2=
16/7÷2 1/4= 29/3÷6= 4/3÷7=
9\4÷8= 3/ 12÷2/9= 1/6÷2/9=
6÷ 1/4 = 20÷ 1/4= 1/4÷5 =
1÷3/5= 5/ 10÷ 1= 1/8÷5=
1/2÷ 1/3= 3/8÷7/8 = 9÷3/5 =
2/7÷2/5 = 6÷ 1/2= 3/5÷ 1/4=
1/3÷ 1/3= 2/5÷ 1/5= 5/ 12÷ 1/6=
1÷ 1/ 15= 5/ 12÷ 1/7 = 9/ 10÷3/2=
2/9÷3/ 12= 1/4÷ 1/2= 12/ 14÷26=
19/6÷ 1/2= 2/3÷ 1/2= 6/7÷ 1/2=
16/7÷ 1/4= 29/3÷ 1/6= 1/3÷7=
1\4÷8= 3/8÷2/9= 1/6÷4/9=
6÷ 1/4 = 20÷ 1/4= 1/4÷/5 =
1/2÷4/5= 7/ 10÷ 1/5= 2/9÷5=
1/2÷ 1/3= 3/8÷ 1/8 = 9÷ 1/4 =
2/7÷ 1/7 = 6÷5/6= 3/5÷2/3=
1/3÷3/4= 2/5÷ 1/5= 5/ 12÷ 1/ 13=
1÷9/ 1 1= 5/ 12÷7/8 = 9/ 10÷ 1/4=
2/9÷5/ 18= 1/4÷2/3= 12/ 13÷ 1/5=
19/6÷3/ 12= 2/3÷7/ 12= 6/7÷ 1/ 12=
16/7÷ 1/24= 1/3÷6= 4/ 13÷7=
3/4÷8= 3/8÷ 1/9= 1/6÷2/7=
6÷ 1/ 12 = 20÷ 1/5= 1/4÷ 1/5 =
794- 198= 68×25= 6756- 193-207=
72× 125= 97×360+3×360=
5/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3
5/9*3/4 1 1/ 12*4/5 7/ 10*5/6 6/7*2/3 2/ 1 1*2/3
5/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3
5/9*3/4 1 1/ 12*4/5 7/ 10*5/6 6/7*2/3 2/ 1 15/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 / kloc-0/*2/3 5/7*2/ 3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3 5/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3
5/9*3/4 1 1/ 12*4/5 7/ 10*5/6 6/7*2/3 2/ 1 1*2/3
4/5×5/8 = 7/9×9/7 =
2.64+3.6= 2.4×50= 3500÷70= 2050-298= 2+7÷9= 0.3÷3%= 8 1.2- 1 1÷7-×3= 6696÷62-6.5× 10.6 =
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26- 1.5)
6.286+ 198
7.3 14-202
8.526+30 1
9.223-99
10.6.25+3.85-2. 125+3.875
1 1.9-2456*2 1
12.0.5/ 1 1.5-4*2.75
13. 1/2×3/5
14.3.375+5.75+2.25+6.625
15. 100 1-9036÷ 18
16.3.8×5.25+ 14.5
17.2. 1*4.3+5.7*2. 1
18.30× 1/3
19. 102*45-328
20.2/3× 12
2 1.2.8*3. 1+ 17.6/8
22.3/5×5/6
23.(50- 12.5)/2.5
24.2/5× 1/3
25.6 1 10*47+639
26. 1/2- 1/6
27.3.5*2.7-52.2/ 18
28. 1/7× 1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
3 1.6.54+2.4+3.46+0.6
32.5/6- 1/2
33.95.6* 1.8+95.6*8.2
34. 1/2× 1/5
35.600-420/ 12
36.344/3.6-5.4*0.25
37. 16/2+30/2+90/6
38.300 1- 1998.
39.5000- 105*34
40.0. 15/0.25+0.75* 1.2
4 1.( 1/2+ 1/3+ 1/4)*0.24
42.(25+4)*4
43.300-4263/2 1
44.0.8 1/0.25+5.96
45.403÷ 13×27
46. 1.5×4.2-0.75÷0.25
47.3.27×4 +3.27×5.7
48.( 1.2+ 1.8)×4.5 1025-768÷32
49.0.25×80-0.45÷0.9
50. 1025-768÷32
5 1.0.25*2.69*4 52.2348+275* 16 53.2/9* 15/8- 1/ 12*9/5
54.2.4+2.4*(5.375-3.375) 55.645-45* 12 56.0. 15+ 1.2/0.24-0.45
57.3.75-(2.35+0.25/ 1.25) 58.76* 1/4+23*25/ 100+0.25
59. 10-2.87-7. 13 60.0.96+9.6*9.9 6 1.7.5-5.7* 1/3
62. 12.37-3.25-6.75 63. 16*6.8+2.2* 16+ 16 64.40 1* 19+284
65.58.7- 16.65/3.7 66.0.4*4.7*2.5+(2.3+5.3)
67.9.3 1- 1. 125-7.875 68.640+ 128*45
69.8.2* 1.6-0.336/4.2 70.400*(0.62+0.08) 1/2+ 1/3
5/9*3/4 1 1/ 12*4/5 7/ 10*5/6 6/7*2/3 2/ 1 1*2/3 5/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ / kloc-0/ 1*2/3 5/ 7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3 5/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3
5/9*3/4 1 1/ 12*4/5 7/ 10*5/6 6/7*2/3 2/ 1 1*2/3
5/7*2/3 5/6*7/8 4/5* 7/8 3/8*9/7 3/4* 1/2 2/ 1 1*2/3
1、 1.2×3=
5、2-0.8=
9、 10.7-5.7=
13、0.52+0.08=
17、2÷5=
2 1、8×0.03
25、0.0 1× 100=
25、30×0.0 1=
29、0× 1.22=
40、0.6×5=
43、 1.2-0.9=
6、0.54÷0.6=
10、0.26×0.3=
14、 1÷0.05=
18、20×0.4=
26、2.8+ 10.2=
34、7-0.9=
58、0.55+0.3=
38、0.8+0.2=
4 1、 16÷0.4=
44、0. 14×5=
19、2.5×4=
3 1、 15.3- 10=
35、3.3+7=
39、6÷ 10=
45、0.86+2. 14=
8、0.37+4=
16、3.2÷0.8=
20、0.45+0.55=
24、6.4÷8=
1.( 1+ 1/2)( 1+ 1/3)( 1+ 1/4)......( 1+ 1/ 100)
2.( 1- 1/2)( 1- 1/3)( 1- 1/4)......( 1- 1/ 100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26- 1.5)
6.286+ 198
7.3 14-202
8.526+30 1
9.223-99
10.6.25+3.85-2. 125+3.875
1 1.9-2456*2 1
12.0.5/ 1 1.5-4*2.75
13. 1/2×3/5
14.3.375+5.75+2.25+6.625
15. 100 1-9036÷ 18
16.3.8×5.25+ 14.5
17.2. 1*4.3+5.7*2. 1
18.30× 1/3
19. 102*45-328
20.2/3× 12
2 1.2.8*3. 1+ 17.6/8
22.3/5×5/6
23.(50- 12.5)/2.5
24.2/5× 1/3
25.6 1 10*47+639
26. 1/2- 1/6
27.3.5*2.7-52.2/ 18
28. 1/7× 1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
3 1.6.54+2.4+3.46+0.6
32.5/6- 1/2
33.95.6* 1.8+95.6*8.2
34. 1/2× 1/5
35.600-420/ 12
36.344/3.6-5.4*0.25
37. 16/2+30/2+90/6
38.300 1- 1998.
39.5000- 105*34
40.0. 15/0.25+0.75* 1.2
4 1.( 1/2+ 1/3+ 1/4)*0.24
42.(25+4)*4
43.300-4263/2 1
44.0.8 1/0.25+5.96
45.403÷ 13×27
46. 1.5×4.2-0.75÷0.25
47.3.27×4 +3.27×5.7
48.( 1.2+ 1.8)×4.5 1025-768÷32
49.0.25×80-0.45÷0.9
50. 1025-768÷32
5 1.0.25*2.69*4
52.2348+275* 16
53.2/9* 15/8- 1/ 12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45* 12
56.0. 15+ 1.2/0.24-0.45
57.3.75-(2.35+0.25/ 1.25)
58.76* 1/4+23*25/ 100+0.25
59. 10-2.87-7. 13
60.0.96+9.6*9.9
6 1.7.5-5.7* 1/3
62. 12.37-3.25-6.75
63. 16*6.8+2.2* 16+ 16
64.40 1* 19+284
65.58.7- 16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.3 1- 1. 125-7.875
68.640+ 128*45
69.8.2* 1.6-0.336/4.2
70.400*(0.62+0.08)
1/2+ 1/3
2/ 1-5/4
9\3*3\9
3/4+5/4=? 4/5+6/5=? 5/6+6/7=?
1.3/7 × 49/9 - 4/3
2.8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4.8× 5/4 + 1/4
5.6÷ 3/8 – 3/8 ÷6
6.4/7 × 5/9 + 3/7 × 5/9
7.5/2 -( 3/2 + 4/5 )
8.7/8 + ( 1/8 + 1/9 )
9.9 × 5/6 + 5/6
10.3/4 × 8/9 - 1/3
1 1.7 × 5/49 + 3/ 14
12.6 ×( 1/2 + 2/3 )
13.8 × 4/5 + 8 × 1 1/5
14.3 1 × 5/6 – 5/6
15.9/7 - ( 2/7 – 10/2 1 )
16.5/9 × 18 – 14 × 2/7
17.4/5 × 25/ 16 + 2/3 × 3/4
joke