四年级下册口算题 四年级口算题300道

\u56db\u5e74\u7ea7\u4e0b\u518c\u53e3\u7b97\u9898

\u56db\u5e74\u7ea7\u4e24\u4f4d\u6570\u4e58\u4e00\u4f4d\u6570
(1) 94 \u00d7 8 = (2) 57 \u00d7 6 = (3) 9 \u00d7 67 =

(4) 26 \u00d7 9 = (5) 41 \u00d7 9 = (6) 57 \u00d7 3 =

(7) 7 \u00d7 79 = (8) 62 \u00d7 5 = (9) 21 \u00d7 1 =

(10) 3 \u00d7 57 = (11) 5 \u00d7 84 = (12) 8 \u00d7 26 =

(13) 5 \u00d7 67 = (14) 37 \u00d7 4 = (15) 8 \u00d7 98 =

(16) 6 \u00d7 24 = (17) 98 \u00d7 5 = (18) 12 \u00d7 2 =

(19) 9 \u00d7 75 = (20) 68 \u00d7 2 =

\u56db\u5e74\u7ea7\u51e0\u767e\u51e0\u5341\u6570\u4e58\u4e00\u4f4d\u6570
(1) 4 \u00d7 30 = (2) 100 \u00d7 4 = (3) 700 \u00d7 5 =

(4) 9 \u00d7 800 = (5) 8 \u00d7 80 = (6) 5 \u00d7 200 =

(7) 6 \u00d7 300 = (8) 2 \u00d7 600 = (9) 300 \u00d7 9 =

(10) 2 \u00d7 400 = (11) 4 \u00d7 50 = (12) 3 \u00d7 20 =

(13) 60 \u00d7 1 = (14) 7 \u00d7 600 = (15) 5 \u00d7 90 =

(16) 20 \u00d7 1 = (17) 90 \u00d7 3 = (18) 9 \u00d7 300 =

(19) 2 \u00d7 100 = (20) 90 \u00d7 6 =
\u56db\u5e74\u7ea7\u5c0f\u6570\u7684\u52a0\u6cd5\u548c\u51cf\u6cd5
(1) 7.64 \uff0b 6.42 \uff1d (2) 9.31 \uff0b 3.31 \uff1d (3) 1.44 \uff0b 1.02 \uff1d

(4) 3.42 - 2.19 \uff1d (5) 8.13 - 7.79 \uff1d (6) 8.96 - 5.27 \uff1d

(7) 7.37 \uff0b 6.17 \uff1d (8) 3.77 - 3.00 \uff1d (9) 2.10 \uff0b 2.34 \uff1d

(10) 1.48 \uff0b 4.54 \uff1d (11) 7.69 \uff0b 9.31 \uff1d (12) 7.83 \uff0b 1.96 \uff1d

(13) 7.45 - 5.77 \uff1d (14) 8.98 - 7.83 \uff1d (15) 3.08 \uff0b 9.01 \uff1d

(16) 9.17 \uff0b 4.62 \uff1d (17) 3.79 \uff0b 3.20 \uff1d (18) 9.51 - 8.59 \uff1d

(19) 5.64 - 2.98 \uff1d (20) 9.86 - 8.20 \uff1d

\u56db\u5e74\u7ea7\u4e24\u4f4d\u6570\u4e58\u4e09\u4f4d\u6570
(1) 624 \u00d7 17 \uff1d (2) 15 \u00d7 914 \uff1d (3) 422 \u00d7 74 \uff1d

(4) 894 \u00d7 45 \uff1d (5) 103 \u00d7 80 \uff1d (6) 445 \u00d7 32 \uff1d

(7) 49 \u00d7 958 \uff1d (8) 212 \u00d7 25 \uff1d (9) 21 \u00d7 498 \uff1d

(10) 80 \u00d7 857 \uff1d (11) 980 \u00d7 69 \uff1d (12) 371 \u00d7 16 \uff1d

(13) 70 \u00d7 569 \uff1d (14) 53 \u00d7 223 \uff1d (15) 36 \u00d7 499 \uff1d

(16) 516 \u00d7 47 \uff1d (17) 37 \u00d7 438 \uff1d (18) 840 \u00d7 78 \uff1d

(19) 918 \u00d7 62 \uff1d (20) 946 \u00d7 80 \uff1d
\u56db\u5e74\u7ea7\u6574\u5341\u6570\u9664\u6574\u5341\u6570
(1) 20 \u00f7 10 \uff1d (2) 90 \u00f7 10 \uff1d (3) 30 \u00f7 10 \uff1d

(4) 60 \u00f7 10 \uff1d (5) 90 \u00f7 30 \uff1d (6) 60 \u00f7 20 \uff1d

(7) 40 \u00f7 10 \uff1d (8) 80 \u00f7 20 \uff1d (9) 80 \u00f7 10 \uff1d

(10) 50 \u00f7 10 \uff1d (11) 40 \u00f7 20 \uff1d (12) 80 \u00f7 40 \uff1d

(13) 70 \u00f7 10 \uff1d (14) 60 \u00f7 30 \uff1d
\u56db\u5e74\u7ea7\u6574\u5341\u6570\u9664\u51e0\u767e\u51e0\u5341\u6570
(1) 920 \u00f7 10 \uff1d (2) 180 \u00f7 90 \uff1d (3) 900 \u00f7 20 \uff1d

(4) 420 \u00f7 10 \uff1d (5) 540 \u00f7 30 \uff1d (6) 390 \u00f7 30 \uff1d

(7) 520 \u00f7 10 \uff1d (8) 330 \u00f7 10 \uff1d (9) 840 \u00f7 20 \uff1d

(10) 330 \u00f7 30 \uff1d (11) 100 \u00f7 20 \uff1d (12) 160 \u00f7 20 \uff1d

(13) 270 \u00f7 30 \uff1d (14) 510 \u00f7 10 \uff1d (15) 700 \u00f7 10 \uff1d

(16) 690 \u00f7 30 \uff1d (17) 440 \u00f7 40 \uff1d (18) 520 \u00f7 40 \uff1d

(19) 420 \u00f7 70 \uff1d (20) 720 \u00f7 10 \uff1d
\u56db\u5e74\u7ea7\u6574\u5341\u6570\u9664\u4e09\u4f4d\u6570\u6765\u6e90
(1) 940 \u00f7 10 \uff1d (2) 560 \u00f7 10 \uff1d (3) 100 \u00f7 20 \uff1d

(4) 240 \u00f7 80 \uff1d (5) 630 \u00f7 10 \uff1d (6) 280 \u00f7 70 \uff1d

(7) 400 \u00f7 20 \uff1d (8) 370 \u00f7 10 \uff1d (9) 550 \u00f7 10 \uff1d

(10) 880 \u00f7 80 \uff1d (11) 740 \u00f7 10 \uff1d (12) 300 \u00f7 20 \uff1d

(13) 360 \u00f7 10 \uff1d (14) 600 \u00f7 40 \uff1d (15) 900 \u00f7 90 \uff1d

(16) 760 \u00f7 10 \uff1d (17) 180 \u00f7 60 \uff1d (18) 900 \u00f7 20 \uff1d

(19) 400 \u00f7 80 \uff1d (20) 800 \u00f7 50 \uff1d
\u56db\u5e74\u7ea7\u4e24\u4f4d\u6570\u9664\u4e09\u4f4d\u6570
[\u6807\u7b7e\uff1a\u56db\u5e74\u7ea7]
(1) 970 \u00f7 97 \uff1d (2) 456 \u00f7 24 \uff1d (3) 544 \u00f7 17 \uff1d

(4) 484 \u00f7 44 \uff1d (5) 730 \u00f7 73 \uff1d (6) 924 \u00f7 21 \uff1d

(7) 806 \u00f7 62 \uff1d (8) 697 \u00f7 41 \uff1d (9) 870 \u00f7 87 \uff1d

(10) 684 \u00f7 57 \uff1d (11) 726 \u00f7 66 \uff1d (12) 816 \u00f7 68 \uff1d

(13) 920 \u00f7 92 \uff1d (14) 830 \u00f7 83 \uff1d (15) 885 \u00f7 59 \uff1d

(16) 846 \u00f7 47 \uff1d (17) 868 \u00f7 28 \uff1d (18) 780 \u00f7 12 \uff1d

(19) 847 \u00f7 77 \uff1d (20) 450 \u00f7 30 \uff1d
\u56db\u5e74\u7ea7\u5c0f\u6570\u4fdd\u7559\u901f\u7b97\u9898
(1) 0.448(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (2) 0.841(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (3) 5.401(\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570)

(4) 86.348(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (5) 2.104(\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570) (6) 36.654(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570)

(7) 3.126(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (8) 5.222(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (9) 20.116(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570)

(10) 4.104(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (11) 8.63(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (12) 2.872(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570)

(13) 13.196(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (14) 157.177(\u4fdd\u7559\u6574\u6570) (15) 0.295(\u4fdd\u7559\u6574\u6570)

(16) 18.267(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (17) 4.5(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (18) 6.134(\u4fdd\u7559\u4e00\u4f4d\u5c0f\u6570)

(19) 0.284(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570) (20) 2.728(\u4fdd\u7559\u4e8c\u4f4d\u5c0f\u6570)
\u56db\u5e74\u7ea7\u5c0f\u6570\u7684\u52a0\u6cd5\u548c\u51cf\u6cd5
(1) 34.85 \uff0d 11.73 \uff1d (2) 75.80 \uff0b 59.35 \uff1d (3) 64.39 \uff0b 40.78 \uff1d

(4) 67.23 \uff0d 19.17 \uff1d (5) 50.10 \uff0d 48.60 \uff1d (6) 91.91 \uff0d 75.10 \uff1d

(7) 53.73 \uff0d 31.75 \uff1d (8) 64.48 \uff0d 14.42 \uff1d (9) 39.03 \uff0d 14.98 \uff1d

(10) 22.04 \uff0b 80.13 \uff1d (11) 28.36 \uff0d 24.00 \uff1d (12) 61.83 \uff0b 69.95 \uff1d

(13) 65.36 \uff0d 38.06 \uff1d (14) 29.37 \uff0d 18.02 \uff1d (15) 42.09 \uff0d 32.46 \uff1d

(16) 18.08 \uff0b 34.00 \uff1d (17) 47.63 \uff0d 31.59 \uff1d (18) 17.42 \uff0d 10.44 \uff1d

(19) 16.24 \uff0d 14.18 \uff1d (20) 55.89 \uff0d 28.75 \uff1d

\u56db\u5e74\u7ea7\u4e24\u4f4d\u6570\u56db\u5219\u8fd0\u7b97
1) 49\uff0b76\uff0b37 \uff1d (2) 28\u00d72\uff0b84 \uff1d (3) 4\u00f71\u00d71 \uff1d (4) 36\uff0b69\u00d74 \uff1d (5) 9\u00f71\uff0d8 \uff1d

(6) 4\u00d71\u00f71 \uff1d (7) 6\u00f73\uff0b19 \uff1d (8) 5\u00d77\u00f71 \uff1d (9) 8\uff0b52\u00f71 \uff1d (10) 2\uff0b50\u00f71 \uff1d

(11) 9\u00f71\uff0b53 \uff1d (12) 9\u00f71\u00d74 \uff1d (13) 17\u00d78\u00d71 \uff1d (14) 94\uff0d26\uff0d22 \uff1d (15) 6\u00f71\uff0d3 \uff1d

(16) 48\uff0b84\u00d71 \uff1d (17) 7\u00d71\u00f71 \uff1d (18) 7\u00f77\u00d74 \uff1d (19) 7\u00f71\u00d75 \uff1d (20) 4\u00f71\u00d72 \uff1d
\u6c14\u6b7b\u4eba\u7684\u56db\u5e74\u7ea7\u53e3\u7b97\u9898
97\u4e07-21\u4e07= 400\u00d780= 720\u00d753\u2248 72+58=

60\u00d7500= 9000-2000= 56\u00d7620\u2248 17\u00d77=

56\u4e07+20\u4e07= 4\u00d715= 578\u00d727\u2248 200-75=

4000+3000= 40\u00d715= 342\u00d728\u2248 125\u00d72=

70\u4e07+26\u4e07= 400\u00d715= 786\u00d734\u2248 480+80=

8000-1000= 25\u00d74= 55\u00d7240\u2248 377+23=

3000+2000= 25\u00d730= 214\u00d752\u2248 99+102=

18\u4e07+35\u4e07= 25\u00d7300= 496\u00d789\u2248 330-260=

5000+4000= 8\u00d76= 68\u00d7315\u2248 9\u00d76+15=

47\u4e07+23\u4e07= 80\u00d760= 778\u00d743\u2248 8\u00d79+7=

9000-6000= 800\u00d7600= 87\u00d7115\u2248 7\u00d75+5=

8000-2000= 400+80= 806\u00d751\u2248 5\u00d78+9=

76\u4e07-28\u4e07= 277+23= 400-128= 120-25=

90\u4e07-30\u4e07= 480-400= 300-253= 107-79=

23\u00d730= 300-23= 200-149= 280\u00f78=

230\u00d730= 99+88= 100-56= 35\u00d74=

200\u00d720= 330-260= 600-420= 38\u00d75=

320\u00d730= 187-99= 95+105= 277+23=

240\u00d720= 330-70= 4000+5000= 1500+6000=

480-80= 70\u00d7600= 100-78= 6\u00d79+8=

260+70= 600\u00d75= 1200-800= 7+8\u00d79=

300-277= 130\u00d74= 6000+9000= 187-88=

187-88= 400\u00d77= 210-55= 75\u00d76=

500-149= 800\u00f72= 185-30= 75\u00d74=

1\u3001240+480\u00f730\u00d72
=240+16\u00d72
=240+32
=272
2\u3001225-10\u00d7(6+13)
=225-10\u00d719
=225-190
=35
3\u3001(120\u00d72+120)\u00f79
=\uff08240+120\uff09\u00f79
=360\u00f79
=40
4\u3001164-13\u00d75+85
=164-65+85
=99+85
=184
5\u3001330\u00f7(65-50)
=330\u00f715
=22
6\u3001128-6\u00d78\u00f716
=128-48\u00f716
=128-3
=125
\u6269\u5c55\u8d44\u6599
\u901f\u7b97\u7684\u53e3\u8bc0\uff1a

\u4efb\u610f\u4e24\u4f4d\u6570\u4e58\u4ee5\u4efb\u610f\u4e24\u4f4d\u6570\uff0c\u53ea\u8981\u9b4f\u5f0f\u7cfb\u6570\u4e3a\u201c0\u201d\u6240\u5f97\u7684\u79ef\uff0c\u4e00\u5b9a\u662f\u4e24\u9879\u6570\u4e2d\u7684\u5c3e\u4e58\u5c3e\u6240\u5f97\u7684\u79ef\u4e3a\u540e\u79ef\uff0c\u5934\u4e58\u5934\uff08\u5176\u4e2d\u4e00\u9879\u5934\u52a01\u7684\u548c\uff09\u7684\u79ef\u4e3a\u524d\u79ef\uff0c\u4e24\u79ef\u76f8\u90bb\u6240\u5f97\u7684\u79ef\u3002
ab\u00d7cd \u9b4f\u5f0f\u7cfb\u6570=\uff08a-c)\u00d7d+(b+d-10)\u00d7c ­\u201c\u5934\u4e58\u5934\uff0c\u5c3e\u4e58\u5c3e\uff0c\u5408\u96f6\u4e3a\u6574\uff0c\u8865\u4f59\u6570\u3002\u201d­
1\u3001\u5148\u6c42\u51fa\u9b4f\u5f0f\u7cfb\u6570
2\u3001\u5934\u4e58\u5934\uff08\u5176\u4e2d\u4e00\u9879\u52a0\u4e00\uff09\u4e3a\u524d\u79ef \uff08\u9002\u5e94\u5c3e\u76f8\u52a0\u4e3a10\u7684\u6570\uff09­
3\u3001\u5c3e\u4e58\u5c3e\u4e3a\u540e\u79ef\u3002­
4\u3001\u4e24\u79ef\u76f8\u8fde\uff0c\u5728\u5341\u4f4d\u6570\u4e0a\u52a0\u4e0a\u9b4f\u5f0f\u7cfb\u6570\u5373\u53ef \u3002 ­

1. 25+300÷5

2. (25+300)÷5

3. 25+75÷5+75

4. 200-(35+48÷24)

5. (72+32×4)÷40

6. 45+55-45+55

7. 2-2×0+2

8. 10-10÷10×10

9.(75+25÷5)-40

10. 2800÷25×4+80

11. 2800÷25×4+80

12. (380-80×4)÷60

13. 20-16÷4+3×2

14.(20-16)÷4+3×2

15.(1520-150)÷60-40

16.(1520-150)÷(60-40)

17. 448×26+17523÷297

18. 3600-(58+1872÷24)

19. 48230÷(150+37×16)

20. 1000÷(850-25×26)+44

21.(7344÷72+98)×43

22.(905+985)÷(203-168)

23. 24×36-3213÷9

24.(378-158)÷(38+72)

25. 726+824÷8-409

26. 120×3÷5

27. 120÷3÷5

28. 78x101-178

29. 178x101-17

30. 178x101-78

31. 3 × 49 - 4
32. 8 × 156 + 17
33. 12× 5 – 9 ×3
34. 8× 4 + 4
35. 6÷ 38 – 38 ÷6
36. 47 × 59 + 37 × 9
37. 52 -( 32 + 45 )
38. 78 + ( 1/8 + 1/9 )
39. 9 × 56 + 56
40. 34 × 89 - 13
41. 7 × 549 + 34
42. 6 ×( 12 + 3 )
43. 8 × 5 + 8 × 115
44. 31 × 56 – 56
45. 97 - ( 27 – 1021 )
46. 59 × 18 – 14 × 27
47. 45 × 2516 + 23 × 34
48. 14 × 87 – 56 × 125
49. 1732 – 34 × 94
50. 3 × 29 + 13
51. 57 × 325 + 37
52. 314 × 23 + 16
53. 15 × 23 + 56
54. 922 + 111 ÷ 12
55. 53 × 115 + 43
56. 45 × 23 + 13 × 15
57. 79 + 129 × 56
58. 14 + 34 ÷ 23
59. 7 × 2116 + 12
60. 101 × 15 – 15 × 21
61.50+(58+370)×(64-45)
62.120-148+35
63.347+45×2-4160
64(58+37)×(64-9×5)
65.95×(64-45)
66.178-145+42 420+580-64×21
67.812-9+31×11
68.85+14×(14+208)
69.(284+16)×(512-8208)
70.120-36×4+35
71.(58+37)×(64-9×5)
72.(68-68×55)÷85
73.12× 12×48
74.32×15+25
75.6-+785-37=
76.72÷8-12×5
77.65×(48-12×4)
78.15-1075×4-7
79.58×(37-13)+42×374
80.352-(6+9)×25
81. 8+3×7

82. 9×2+4×3

83. 6×(50-46)

84. 3+3-5

85. 63-9×6

86. (48+32)+5

87. 74+105×3

88. 74+100×3

88. 65-6×4÷2

89. 38+56÷7×3

90.(440-280)×(300—260)

91.(59+21)×(96÷8)

92.(220-100)+(15×2)

93. 700-8×5×4

94. (275-35)+(17+43)

95 .480+(96-16+6)

96.(15×40—360)×6

97. 14+16×4-50

98. 74+(96÷6-8)

99. 72-45+121÷11

100. 20÷18×(806-799)

101. 75÷25+300÷5

102. (85÷5+300)÷5

103. 25+7÷25+75

104. 20-(5+48÷24)

105. (7+2×4)÷40

106. 555-45+55

107. 2-20+2

108. 10-110×10

109.(5+25÷5)-40

110. 200÷25×4+80

111. 280÷25×4+80

112. (30-8×4)÷60

113. 2-16+3×2

114.(20-6)÷4+32

115.(52-150)÷6-40

116.(120-50)÷(60-40)

117. 48×26+173 + 297

118. 360-(58+1872-24)

119. 230×(150+37×16)

120. 100÷(850-25×6)+44

121.(7344÷2+98)×43

122.(95+98)×(203-168)

123. 124×36-3213÷9

124.(378-158)×(38+72)

125. 26+824÷8-409

126. 12×3÷5

127. 12÷3÷5

128. 8x101-178

129. 178x11-17

130. 17x101-78

131. 3 × 4 - 4
132. 8 × 16 + 1
133. 12× 5 – 3
134. 8× 4 + 4
135. 38 – 38 ÷2
136. 47 × 59 + 7 × 9
137. 2 -( 32 + 45 )
138. 8 + ( 8 + 9 )
139. 9 × 6 + 56
140. 3 × 89 - 13
141. 7 × 59 + 34
142. 6 ×( 1 + 3 )
143. 8 + 8 × 115
144. 31 × 6 – 56
145. 97 - ( 27 – 102)
146. 9 × 18 – 1 × 27
147. 45 × 26 + 23 × 34
148. 14 × 87 – 6 × 125
149. 17 – 34 × 94
150. 3 × 9 + 13
151. 57 × 32 + 37
152. 3 × 23 + 16
153. 15 × 3 + 56
154. 92 + 144 ÷ 12
155. 3 × 115 + 43
156. 5 × 23 + 13 × 15
157. 7+ 129 × 56
158. 14 + 3 + 23
159. 7 × 21 + 12
160. 10 × 15 – 15 × 21
161.50+(58+37)×(64-45)
162.20-148+35
163. 45×2-4160
164(58+37)×65
165. 95×(1-45)
166. 8-145+420+580-64×21
167. 81-9+31×11
168. 85+14×(14+28)
169.(28+16)×(512-8208)
170.12-36×4+35
171.(5+37)×(64-9×5)
172. (618-68×55)÷85
173. 112× 12×48
174. 2×15+25
175. 16-+785-37
176. 72-12×5
177. 65×(8-12×4)
178. 15-107×4-7
179. 5×(37-13)+42×374
180. 52-(6+9)×25
181. 8+90×7

182. 19×2+4×3

183. 16×(50-46)

184. 31+3-5

185. 3-9×6

186. (4+32)+5

187. 74+15×3

188. 7+100×3

189. 65-6×4÷2

190.(44 -280)×(300—260)

191.(591+21)×(96÷8)

192.(20-100)+(15×2)

193. 70-8×5×4

194. (75-35)+(17+43)

195 . 40+(96-16+6)

196.(15×4—360)×6

197. 14+6×4-50

198. 74+(6÷6-8)

199. 2-45+121÷11

200. 218×(806-799)

201. 75÷5+300÷5

202. (15÷5+300)÷5

203. 2+7÷25+75

204. 09-(5+48÷24)

205. (17+2×4)÷40

206. 55-45+55

207. 92-20+2

208. 10-10×10

209.(5+5÷5)-40

210. 20÷25×4+80

211. 20÷25×4+80

212. (30-8×4)÷6

213. 2-6+3×2

214.(2-6)÷4+32

215.(2-150)÷6-40

216.(20-50)÷(60-40)

217. 4×26+173 + 297

218. 36-(58+1872-24)

219. 20×(150+37×16)

220. 10÷(850-25×6)+44

221.(744÷2+98)×43

222.(9+98)×(203-168)

223. 14×36-3213÷9

224.(38-158)×(38+72)

225. 26+84÷8-409

226. 1×3÷5

227. 2÷3÷5

228. 8x11-178

229. 17x11-17

230. 17x11-78

231. 3 × 40 - 4
232. 8 × 9 + 1
233. 12× 95 – 3
234. 8× 94 + 4
235. 3 – 38 ÷2
236. 7 × 59 + 7 × 9
237. 2 -( 3 + 45 )
238. 8 + ( 98 + 9 )
239. 9 × 6 + 6
240. 3 × 8 - 13
241. 7 × 9 + 34
242. 6 ×( 1 + 3 )
243. 8 + 8 × 15
244. 31 × 6 – 6
245. 97 - ( 2 – 102)
246. 9 × 19 – 1 × 27
247. 45 × 6 + 23 × 34
248. 14 × 7 – 6 × 125
249. 17 – 4 × 94
250. 3 × 89 + 13
251. 57 × 2 + 37
252. 3 × 3 + 16
253. 85 × 3 + 56
254. 2 + 144 ÷ 12
255. 3 × 11 + 43
256. 5 × 2 + 13 × 15
257. 7+ 19 × 56
258. 14 + 39 + 23
259. 7 × 2 + 12
260. 10 × 5 – 15 × 21
261.50+(8+37)×(64-45)
262.20-14+35
263. 45×2-460
264(58+3)×65
265. 95×(10-45)
266. 8-145+40+50-64×21
267. 81-9+31×91
268. 85+14×(4+28)
269.(28+16)×(512-808)
270.12-36×4+3
271.(5+3)×(64-9×5)
272. (668×55)÷85
273. 12× 12×48
274. 2×105+25
275. 16-+75-37
276. 72-12×5
277. 65×(8-12×4)
278. 15-107×4-7
279. 5×(37-13)+2×374
280. 2-(6+9)×25
281. 18+90×7

282. 109×2+4×3

283. 160×(50-46)

284. 351+3-5

285. 3-9×106

286. (4+30)+5

287. 74+19×3

288. 7+10×3

289. 5-6×4÷2

290.(4 -280)×(300—260)

291.(91+21)×(96÷8)

292.(90-100)+(15×2)

293. 90-8×5×4

294. (5-35)+(17+43)

295 . 4+(96-16+6)

296.(19×4—360)×6

297. 1+6×4-50

298. 7+(6÷6-8)

299. 2-4+121÷11

300. 21×(806-799

http://zhidao.baidu.com/question/53635751.html
http://zhidao.baidu.com/question/60835350.html?si=1
http://zhidao.baidu.com/question/59639899.html?si=6
http://zhidao.baidu.com/question/40910291.html?si=2
原谅我只给你网址
http://zhidao.baidu.com/q?word=%D0%A1%D1%A7%CB%C4%C4%EA%BC%B6%CF%C2%B2%E1%BF%DA%CB%E3&ct=17&pn=0&tn=ikaslist&rn=10&srs=0

30乘80 24乘5 770除以70 66乘6 36乘30 0.078+0.333 447-400 99乘100 0.009乘10000 你要几个呀,你得说清楚,拜托。

25 -15 -80 =
26 -6 -64 =
27 + 3 -48 =
28 + 12 -32
29 + 21 -16 =
30 + 30 + 0 =
31 + 39 + 16 =
32 + 48 + 32 =
33 + 57 + 48 =
34 + 66 + 64 =
35 + 75 + 80 =
36 + 84 + 96 =
37 + 93 + 112 =
38 + 102 + 128 =
39 + 111 + 144 =
40 -30 -140 =
41 -21 -124 =
42 -12 -108 =
43 -3 -92 =
44 + 6 -76 =
45 + 15 -60 =
46 + 24 -44 =
47 + 33 -28 =
48 + 42 -12 =
49 + 51 + 4 =
50 + 60 + 20 =
51 + 69 + 36 =
52 + 78 + 52 =
53 + 87 + 68 =
54 + 96 + 84 =
55 -45 -200
56 -36 -184 =
57 -27 -168 =
58 -18 -152 =
59 -9 -136
60 + 0 -120
61 + 9 -104
62 + 18 -88
63 + 27 -72 =
64 + 36 -56
65 + 45 -40 =
66 + 54 -24 =
67 + 63 -8 =
68 + 72 + 8 =
69 + 81 + 24
70 -60 -260
71 -51 -244 =
72 -42 -228 =
73 -33 -212 =
74 -24 -196 =

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