1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40= 9
10.40×20= 800
11.80-25= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=3500
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
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
1.9-1.9*(1.9-1.9)
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
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001-9036÷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
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*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
31.6.54+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
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+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)×4.51025-768÷32
49.0.25×80-0.45÷0.9
50.1025-768÷32
51.0.25*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
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
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=? . 3/7 × 49/9 - 4/3 =1
2. 8/9 × 15/36 + 1/27 =7/9
3. 12× 5/6 – 2/9 ×3 =9又1/3
4. 8× 5/4 + 1/4 =10又1/4
5. 6÷ 3/8 – 3/8 ÷6 =15又15/16
6. 4/7 × 5/9 + 3/7 × 5/9 =1又5/9
7. 5/2 -( 3/2 + 4/5 )=1/5
8. 7/8 + ( 1/8 + 1/9 ) =1又1/9
9. 9 × 5/6 + 5/6 =12
10. 3/4 × 8/9 - 1/3 =1/3
11. 7 × 5/49 + 3/14 =13/14
12. 6 ×( 1/2 + 2/3 )=7
13. 8 × 4/5 + 8 × 11/5 =11
14. 31 × 5/6 – 5/6 =25
15. 9/7 - ( 2/7 – 10/21 )=11/21
16. 5/9 × 18 – 14 × 2/7 =6
17. 4/5 × 25/16 + 2/3 × 3/4 =57/50=1又7/50
18. 14 × 8/7 – 5/6 × 12/15 =15又1/3
19. 17/32 – 3/4 × 9/24 =1/4
20. 3 × 2/9 + 1/3 =1
21. 5/7 × 3/25 + 3/7 =18/35
22. 3/14 ×× 2/3 + 1/6 =13/42
23. 1/5 × 2/3 + 5/6 =29/30
24. 9/22 + 1/11 ÷ 1/2 =9
25. 5/3 × 11/5 + 4/3 =5
26. 45 × 2/3 + 1/3 × 15 =20
27. 7/19 + 12/19 × 5/6 =5/6
28. 1/4 + 3/4 ÷ 2/3 =1又1/2
29. 8/7 × 21/16 + 1/2 =2
30. 101 × 1/5 – 1/5 × 21 =42
8×5/6+2/5÷4
1/2+3/4×5/12×4/5
8/9×3/4-3/8÷3/4
5/8÷5/4+3/23÷9/11
3/7 × 49/9 - 4/3
8/9 × 15/36 + 1/27
12× 5/6 – 2/9 ×3
8× 5/4 + 1/4
6÷ 3/8 – 3/8 ÷6
4/7 × 5/9 + 3/7 × 5/9
5/2 -( 3/2 + 4/5 )
7/8 + ( 1/8 + 1/9 )
9 × 5/6 + 5/6
3/4 × 8/9 - 1/3
7 × 5/49 + 3/14
6 ×( 1/2 + 2/3 )
8 × 4/5 + 8 × 11/5
31 × 5/6 – 5/6
9/7 - ( 2/7 – 10/21 )
5/9 × 18 – 14 × 2/7
4/5 × 25/16 + 2/3 × 3/4
14 × 8/7 – 5/6 × 12/15
17/32 – 3/4 × 9/24
3 × 2/9 + 1/3
5/7 × 3/25 + 3/7
3/14 ×× 2/3 + 1/6
1/5 × 2/3 + 5/6
9/22 + 1/11 ÷ 1/2
5/3 × 11/5 + 4/3
45 × 2/3 + 1/3 × 15
7/19 + 12/19 × 5/6
1/4 + 3/4 ÷ 2/3
8/7 × 21/16 + 1/2 1/5+2/7÷3/7
三年级口算练习(一)
26+9= 57-38= 1500-700= 42×2= 99÷3= 770÷7=
660÷3= 960÷3= 180÷9= 65+15= 660÷6= 800×2=
50÷5= 3×800= 420÷7= 3×220= 480÷4= 58+33=
420-20= 93÷3= 880÷4= 1200-200= 11×7= 80-46=
0÷51= 0÷76= 0×85= 70÷7= 14×2= 5×900=
2×200= 84÷4= 0÷91= 930÷3= 390÷3= 0+22=
83-57= 29+68= 68-49= 80×7= 800÷4= 330÷3=
3×23= 64÷2= 58+26= 34×2= 550÷5= 800×8=
420÷2= 63÷3= 160÷4= 800+700= 690÷3= 58-0=
2×440= 48÷2= 480÷2= 60×5= 2×44= 840÷4=
三年级口算练习(二)
姓名: 班别:三( )班
440÷4= 32×3= 48÷4= 540÷9= 90÷9= 13×3=
600×7= 120×3= 480÷2= 39÷3= 560÷8= 990÷3=
3×200= 620÷2= 660÷2= 640÷8= 880÷4= 7500-500=
0÷91= 12×4= 3×31= 0×57= 120×4= 0×97=
360÷9= 44×2= 960÷3= 32×2= 2×440= 460÷2=
70+500= 3×33= 280÷4= 9×400= 3×330= 690÷3=
49+33= 700÷7= 23×3= 78-36= 11×4= 230×3=
310×3= 390÷3= 230×3= 11×4= 82-55= 310×3=
720÷9= 4700-700= 600÷3= 48+28= 640÷8= 480÷8=
7×50= 800÷8= 880÷8= 9×500= 80+17= 54+28=
三年级口算练习(四)
姓名: 班别:三( )班
42×3= 1700-800= 90÷3= 180÷3= 300÷5= 930÷3=
800÷4= 60-15= 900÷3= 450÷9= 360÷6= 37+56=
32×3= 70×7= 1200-700= 300÷6= 50×7= 0×37=
53-14= 17+27= 840÷4= 2×14= 140÷2= 660÷6=
7×800= 7×700= 840÷2= 430×2= 540÷9= 31×3=
13×3= 34+56= 96÷3= 2×330= 50×6= 680÷2=
620÷2= 6×800= 960÷3= 1500-900= 1800-800= 63÷3=
26+57= 800÷8= 33+57= 600×3= 37+8= 480÷8=
630÷3= 62-33= 500+500= 33×2= 800÷2= 700÷8=
0÷47= 560÷7= 440÷4= 93÷3= 24×2= 0÷54=
三年级口算练习(三)
姓名: 班别:三( )班
23×3= 12×30= 7×80= 48×10= 40×40= 40×10=
23×30= 60×50= 70×80= 10×68= 40×50= 30×21=
7×11= 50×70= 24×2= 30×70= 10×74= 50×10=
70×11= 30×40= 24×20= 12×20= 30×21= 20×70=
28×1= 20×13= 1×36= 10×19= 11×50= 30×30=
28×10= 20×50= 10×36= 30×33= 21×40= 12×10=
31×2= 14×20= 6×90= 20×33= 90×20= 20×13=
31×20= 22×3= 60×90= 39×10= 21×2= 44×20=
12×4= 22×30= 22×4= 30×80= 33×10= 50×90=
12×40= 220×3= 22×40= 90×40= 200×3= 41×20=
三年级口算练习(五)
姓名: 班别:三( )班
21×30= 10×46= 3×700= 33×30= 20×41= 6×600=
24×20= 50×30= 0×45= 50×70= 800×7= 60÷6=
10×89= 69×10= 13×30= 23×30= 4×90= 60×60=
60×40= 90×30= 21×40= 30×20= 40×90= 2×31=
33×20= 40×70= 48+19= 70×6= 4×900= 2×310=
20+35= 45+35= 32×20= 70×60= 84×1= 900×6=
34×20= 33×30= 31×20= 700×6= 84×10= 9×800=
70×30= 2×42= 86-47= 5×90= 22×30= 6×500=
8×70= 42×20= 400+300= 5×900= 10×33= 22×0=
80×70= 200×4= 0÷20= 6×60= 22×40= 44+20=
三年级口算练习(六)
姓名: 班别:三( )班
40×40= 43×20= 46+37= 420÷6= 300÷6= 40×11=
360÷9= 10×34= 40×90= 90×60= 490÷7= 20×34=
300×3= 80×4= 65×0= 330÷3= 250÷5= 680-80=
21×40= 80×40= 10×37= 20×50= 2000+300= 880÷2=
70×20= 400÷4= 0×66= 50×30= 640÷8= 880÷4=
400+300= 34+39= 360÷6= 99×10= 12×20= 30×80=
41×20= 97×10= 700÷7= 33×30= 0÷59= 11×80=
200÷4= 31×20= 600+90= 4700-700= 44-37= 40×12=
84-47= 630÷7= 71-23= 0÷43= 31×30= 21×30=
43×2= 0×20= 75+18= 23+48= 90×30= 30×12=
三年级口算练习(七)
姓名: 班别:三( )班
46+24= 0÷73= 42×20= 100÷5= 10×50= 350÷5=
52-29= 240×2= 52+39= 400÷8= 480÷8= 33×30=
50×5= 800×3= 60×50= 410×2= 41×20= 310×3=
20×23= 440÷4= 30×32= 0×35= 10×35= 29+61=
40×70= 30×30= 50×90= 80×30= 20×14= 90×50=
420÷6= 300÷6= 240÷4= 69×10= 22×40= 33×20=
900÷9= 810÷9= 630÷9= 30×23= 330×3= 0×30=
750-50= 480÷8= 5000+2000= 77-48= 300÷5= 300+700=
420÷2= 820÷2= 70×11= 4500-500= 20×40= 400÷4=
11×40= 900×5= 67-49= 200÷4= 8000-1000= 20×24=
三年级口算练习(八)
姓名: 班别:三( )班
57+29= 540÷6= 10×73= 10×58= 0÷49= 34×20=
80×90= 30×70= 120×4= 640÷8= 720÷9= 10×34=
65×10= 660÷3= 700×5= 41×20= 7000-3000= 30×30=
10×47= 30×23= 660÷6= 5900-5000= 11×40= 70×40=
10×36= 6000+2000= 80×80= 29+14= 80×50= 200×4=
36+56= 88×10= 600÷6= 22×30= 400+600= 34+29=
800÷8= 21×30= 720÷8= 33×30= 32×20= 87×10=
500+40= 22×40= 440÷4= 33×20= 320÷4= 900÷3=
77-29= 0÷93= 640÷2= 30×50= 75+18= 600+700=
40×70= 43+38= 90×50= 84-65= 43-16= 10×80=
三年级口算练习(九)
(1) (2) (3) (4)
57+29= 500+40= 88×10= 700×5=
80×90= 40×70= 21×30= 660÷6=
65×10= 540÷6= 22×40= 80×80=
10×47= 30×70= 0÷93= 600÷6=
10×36= 660÷3= 43+38= 720÷8=
36+56= 23×30= 10×73= 90×50=
800÷8= 6000+2000= 120×4= 640÷2= 99+89 98+23 96+42 555+999 88888+2222 89-1.5 85-57 99-7.8 89-60
1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40= 9
10.40×20= 800
11.80-25= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=3500
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
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
1.9-1.9*(1.9-1.9)
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
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001-9036÷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
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*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
31.6.54+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
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+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)×4.51025-768÷32
49.0.25×80-0.45÷0.9
50.1025-768÷32
51.0.25*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
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
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=? . 3/7 × 49/9 - 4/3 =1
2. 8/9 × 15/36 + 1/27 =7/9
3. 12× 5/6 – 2/9 ×3 =9又1/3
4. 8× 5/4 + 1/4 =10又1/4
5. 6÷ 3/8 – 3/8 ÷6 =15又15/16
6. 4/7 × 5/9 + 3/7 × 5/9 =1又5/9
7. 5/2 -( 3/2 + 4/5 )=1/5
8. 7/8 + ( 1/8 + 1/9 ) =1又1/9
9. 9 × 5/6 + 5/6 =12
10. 3/4 × 8/9 - 1/3 =1/3
11. 7 × 5/49 + 3/14 =13/14
12. 6 ×( 1/2 + 2/3 )=7
13. 8 × 4/5 + 8 × 11/5 =11
14. 31 × 5/6 – 5/6 =25
15. 9/7 - ( 2/7 – 10/21 )=11/21
16. 5/9 × 18 – 14 × 2/7 =6
17. 4/5 × 25/16 + 2/3 × 3/4 =57/50=1又7/50
18. 14 × 8/7 – 5/6 × 12/15 =15又1/3
19. 17/32 – 3/4 × 9/24 =1/4
20. 3 × 2/9 + 1/3 =1
21. 5/7 × 3/25 + 3/7 =18/35
22. 3/14 ×× 2/3 + 1/6 =13/42
23. 1/5 × 2/3 + 5/6 =29/30
24. 9/22 + 1/11 ÷ 1/2 =9
25. 5/3 × 11/5 + 4/3 =5
26. 45 × 2/3 + 1/3 × 15 =20
27. 7/19 + 12/19 × 5/6 =5/6
28. 1/4 + 3/4 ÷ 2/3 =1又1/2
29. 8/7 × 21/16 + 1/2 =2
30. 101 × 1/5 – 1/5 × 21 =42
8×5/6+2/5÷4
1/2+3/4×5/12×4/5
8/9×3/4-3/8÷3/4
5/8÷5/4+3/23÷9/11
3/7 × 49/9 - 4/3
8/9 × 15/36 + 1/27
12× 5/6 – 2/9 ×3
8× 5/4 + 1/4
6÷ 3/8 – 3/8 ÷6
4/7 × 5/9 + 3/7 × 5/9
5/2 -( 3/2 + 4/5 )
7/8 + ( 1/8 + 1/9 )
9 × 5/6 + 5/6
3/4 × 8/9 - 1/3
7 × 5/49 + 3/14
6 ×( 1/2 + 2/3 )
8 × 4/5 + 8 × 11/5
31 × 5/6 – 5/6
9/7 - ( 2/7 – 10/21 )
5/9 × 18 – 14 × 2/7
4/5 × 25/16 + 2/3 × 3/4
14 × 8/7 – 5/6 × 12/15
17/32 – 3/4 × 9/24
3 × 2/9 + 1/3
5/7 × 3/25 + 3/7
3/14 ×× 2/3 + 1/6
1/5 × 2/3 + 5/6
9/22 + 1/11 ÷ 1/2
5/3 × 11/5 + 4/3
45 × 2/3 + 1/3 × 15
7/19 + 12/19 × 5/6
1/4 + 3/4 ÷ 2/3
8/7 × 21/16 + 1/2 1/5+2/7÷3/7
三年级口算练习(一)
26+9= 57-38= 1500-700= 42×2= 99÷3= 770÷7=
660÷3= 960÷3= 180÷9= 65+15= 660÷6= 800×2=
50÷5= 3×800= 420÷7= 3×220= 480÷4= 58+33=
420-20= 93÷3= 880÷4= 1200-200= 11×7= 80-46=
0÷51= 0÷76= 0×85= 70÷7= 14×2= 5×900=
2×200= 84÷4= 0÷91= 930÷3= 390÷3= 0+22=
83-57= 29+68= 68-49= 80×7= 800÷4= 330÷3=
3×23= 64÷2= 58+26= 34×2= 550÷5= 800×8=
420÷2= 63÷3= 160÷4= 800+700= 690÷3= 58-0=
2×440= 48÷2= 480÷2= 60×5= 2×44= 840÷4=
三年级口算练习(二)
姓名: 班别:三( )班
440÷4= 32×3= 48÷4= 540÷9= 90÷9= 13×3=
600×7= 120×3= 480÷2= 39÷3= 560÷8= 990÷3=
3×200= 620÷2= 660÷2= 640÷8= 880÷4= 7500-500=
0÷91= 12×4= 3×31= 0×57= 120×4= 0×97=
360÷9= 44×2= 960÷3= 32×2= 2×440= 460÷2=
70+500= 3×33= 280÷4= 9×400= 3×330= 690÷3=
49+33= 700÷7= 23×3= 78-36= 11×4= 230×3=
310×3= 390÷3= 230×3= 11×4= 82-55= 310×3=
720÷9= 4700-700= 600÷3= 48+28= 640÷8= 480÷8=
7×50= 800÷8= 880÷8= 9×500= 80+17= 54+28=
三年级口算练习(四)
姓名: 班别:三( )班
42×3= 1700-800= 90÷3= 180÷3= 300÷5= 930÷3=
800÷4= 60-15= 900÷3= 450÷9= 360÷6= 37+56=
32×3= 70×7= 1200-700= 300÷6= 50×7= 0×37=
53-14= 17+27= 840÷4= 2×14= 140÷2= 660÷6=
7×800= 7×700= 840÷2= 430×2= 540÷9= 31×3=
13×3= 34+56= 96÷3= 2×330= 50×6= 680÷2=
620÷2= 6×800= 960÷3= 1500-900= 1800-800= 63÷3=
26+57= 800÷8= 33+57= 600×3= 37+8= 480÷8=
630÷3= 62-33= 500+500= 33×2= 800÷2= 700÷8=
0÷47= 560÷7= 440÷4= 93÷3= 24×2= 0÷54=
三年级口算练习(三)
姓名: 班别:三( )班
23×3= 12×30= 7×80= 48×10= 40×40= 40×10=
23×30= 60×50= 70×80= 10×68= 40×50= 30×21=
7×11= 50×70= 24×2= 30×70= 10×74= 50×10=
70×11= 30×40= 24×20= 12×20= 30×21= 20×70=
28×1= 20×13= 1×36= 10×19= 11×50= 30×30=
28×10= 20×50= 10×36= 30×33= 21×40= 12×10=
31×2= 14×20= 6×90= 20×33= 90×20= 20×13=
31×20= 22×3= 60×90= 39×10= 21×2= 44×20=
12×4= 22×30= 22×4= 30×80= 33×10= 50×90=
12×40= 220×3= 22×40= 90×40= 200×3= 41×20=
三年级口算练习(五)
姓名: 班别:三( )班
21×30= 10×46= 3×700= 33×30= 20×41= 6×600=
24×20= 50×30= 0×45= 50×70= 800×7= 60÷6=
10×89= 69×10= 13×30= 23×30= 4×90= 60×60=
60×40= 90×30= 21×40= 30×20= 40×90= 2×31=
33×20= 40×70= 48+19= 70×6= 4×900= 2×310=
20+35= 45+35= 32×20= 70×60= 84×1= 900×6=
34×20= 33×30= 31×20= 700×6= 84×10= 9×800=
70×30= 2×42= 86-47= 5×90= 22×30= 6×500=
8×70= 42×20= 400+300= 5×900= 10×33= 22×0=
80×70= 200×4= 0÷20= 6×60= 22×40= 44+20=
三年级口算练习(六)
姓名: 班别:三( )班
40×40= 43×20= 46+37= 420÷6= 300÷6= 40×11=
360÷9= 10×34= 40×90= 90×60= 490÷7= 20×34=
300×3= 80×4= 65×0= 330÷3= 250÷5= 680-80=
21×40= 80×40= 10×37= 20×50= 2000+300= 880÷2=
70×20= 400÷4= 0×66= 50×30= 640÷8= 880÷4=
400+300= 34+39= 360÷6= 99×10= 12×20= 30×80=
41×20= 97×10= 700÷7= 33×30= 0÷59= 11×80=
200÷4= 31×20= 600+90= 4700-700= 44-37= 40×12=
84-47= 630÷7= 71-23= 0÷43= 31×30= 21×30=
43×2= 0×20= 75+18= 23+48= 90×30= 30×12=
三年级口算练习(七)
姓名: 班别:三( )班
46+24= 0÷73= 42×20= 100÷5= 10×50= 350÷5=
52-29= 240×2= 52+39= 400÷8= 480÷8= 33×30=
50×5= 800×3= 60×50= 410×2= 41×20= 310×3=
20×23= 440÷4= 30×32= 0×35= 10×35= 29+61=
40×70= 30×30= 50×90= 80×30= 20×14= 90×50=
420÷6= 300÷6= 240÷4= 69×10= 22×40= 33×20=
900÷9= 810÷9= 630÷9= 30×23= 330×3= 0×30=
750-50= 480÷8= 5000+2000= 77-48= 300÷5= 300+700=
420÷2= 820÷2= 70×11= 4500-500= 20×40= 400÷4=
11×40= 900×5= 67-49= 200÷4= 8000-1000= 20×24=
三年级口算练习(八)
姓名: 班别:三( )班
57+29= 540÷6= 10×73= 10×58= 0÷49= 34×20=
80×90= 30×70= 120×4= 640÷8= 720÷9= 10×34=
65×10= 660÷3= 700×5= 41×20= 7000-3000= 30×30=
10×47= 30×23= 660÷6= 5900-5000= 11×40= 70×40=
10×36= 6000+2000= 80×80= 29+14= 80×50= 200×4=
36+56= 88×10= 600÷6= 22×30= 400+600= 34+29=
800÷8= 21×30= 720÷8= 33×30= 32×20= 87×10=
500+40= 22×40= 440÷4= 33×20= 320÷4= 900÷3=
77-29= 0÷93= 640÷2= 30×50= 75+18= 600+700=
40×70= 43+38= 90×50= 84-65= 43-16= 10×80=
三年级口算练习(九)
(1) (2) (3) (4)
57+29= 500+40= 88×10= 700×5=
80×90= 40×70= 21×30= 660÷6=
65×10= 540÷6= 22×40= 80×80=
10×47= 30×70= 0÷93= 600÷6=
10×36= 660÷3= 43+38= 720÷8=
36+56= 23×30= 10×73= 90×50=
800÷8= 6000+2000= 120×4= 640÷2= 99+89 98+23 96+42 555+999 88888+2222 89-1.5 85-57 99-7.8 89-60