751045个5加减乘除等于24怎么等于24

初1数学有理数加减乘除混合运算要答案_百度知道
初1数学有理数加减乘除混合运算要答案
获赞数:51
1.0-21又2/3+(+3又1/4)—(—
2/3)— (+1/4)2.(+16)+(-29)-(-7)-(+11)+(+9)3.(-3.1)-(-4.5)+(+4.4)-(+1.3)+(-2.5)4.(-5)-(-8)+(-15)-(+11)5.(+16)-(+25)-(-24)+(+23)6.2.5-(-3.6)-6.5+(-7)7.163-(-41)-63-(-259)8.(-36)-(-28)+(+125)+(-4)+(-53)-(40)9.23/3-7/4-5/4+9/210.(-52)-(+63)+(+12)-(-51)-(-12)-(-40)11.(-63)+(+54)-(-14)+(-36)12.6/5+(-2/3)-(+3/5)+(-4/3)13.(-2.5)+(+3.6)-(-6.8)+(+5.4) 另附1.125*3+125*5+25*3+25 2.*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6 18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 43.120-36×4÷18+35 44.(58+37)÷(64-9×5) 45.(6.8-6.8×0.55)÷8.5 46.0.12× 4.8÷0.12×4.8 47.(3.2×1.5+2.5)÷1.6 48.6-1.6÷4= 5.38+7.85-5.37= 49.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 50.6.5×(4.8-1.2×4)= 51.5.8×(3.87-0.13)+4.2×3.74 52.32.52-(6+9.728÷3.2)×2.5 53.[(7.1-5.6)×0.9-1.15] ÷2.5 54.5.4÷[2.6×(3.7-2.9)+0.62] 55.12×6÷(12-7.2)-6 56.12×6÷7.2-6 57.0.68×1.9+0.32×1.9 58.58+370)÷(64-45) 59.420+580-64×21÷28 60.136+6×(65-345÷23) 15-10.75×0.4-5.7 62.18.1+(3-0.299÷0.23)×1 63.(6.8-6.8×0.55)÷8.5 64.0.12× 4.8÷0.12×4.8 65.(3.2×1.5+2.5)÷1.6 66.3.2×6+(1.5+2.5)÷1.6 67.0.68×1.9+0.32×1.9 68.10.15-10.75×0.4-5.7 69.5.8×(3.87-0.13)+4.2×3.74 70.32.52-(6+9.728÷3.2)×2.5 附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 附1. 25+300÷52. (25+300)÷53. 25+75÷5+754. 200-(35+48÷24)5. (72+32×4)÷406. 45+55-45+557. 2-2×0+28. 10-10÷10×109.(75+25÷5)-4010. +8011. +8012. (380-80×4)÷6013. 20-16÷4+3×214.(20-16)÷4+3×215.()÷60-4016.()÷(60-40)17. 448×26+118. 3600-(58+1872÷24)19. 48230÷(150+37×16)20. 1000÷(850-25×26)+4421.()×4322.(905+985)÷(203-168)23. 24×36-3213÷924.(378-158)÷(38+72)25. 726+824÷8-40926. 120×3÷527. 120÷3÷528. 78x101-17829. 178x101-1730. 178x101-7831. 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÷8-12×577.65×(48-12×4) 78.15- 79.58×(37-13)+42×374 80.352-(6+9)×25 81. 8+3×782. 9×2+4×383. 6×(50-46)84.
3+3-585. 63-9×6 86. (48+32)+587. 74+105×388. 74+100×388. 65-6×4÷289. 38+56÷7×390.(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)×697. 14+16×4-50 98. 74+(96÷6-8)99. 72-45+121÷11 100. 20÷18×(806-799)101. 75÷25+300÷5102. (85÷5+300)÷5103. 25+7÷25+75104. 20-(5+48÷24)105. (7+2×4)÷40106. 555-45+55107. 2-20+2108. 10-110×10109.(5+25÷5)-40110. 200÷25×4+80111. 280÷25×4+80112. (30-8×4)÷60113. 2-16+3×2114.(20-6)÷4+32115.(52-150)÷6-40116.(120-50)÷(60-40)117. 48×26+173 + 297118. 360-(58+1872-24)119. 230×(150+37×16)120. 100÷(850-25×6)+44121.()×43122.(95+98)×(203-168)123. 124×36-3213÷9124.(378-158)×(38+72)125. 26+824÷8-409126. 12×3÷5127. 12÷3÷5128. 8x101-178129. 178x11-17130. 17x101-78131. 3 × 4 - 4 132. 8 × 16 + 1133. 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+90×7182. 19×2+4×3183. 16×(50-46)184.
31+3-5185. 3-9×6 186. (4+32)+5187. 74+15×3188. 7+100×3189. 65-6×4÷2190.(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)×6197. 14+6×4-50 198. 74+(6÷6-8)199. 2-45+121÷11 200. 218×(806-799)201. 75÷5+300÷5202. (15÷5+300)÷5203. 2+7÷25+75204. 09-(5+48÷24)205. (17+2×4)÷40206. 55-45+55207. 92-20+2208. 10-10×10209.(5+5÷5)-40210. 20÷25×4+80211. 20÷25×4+80212. (30-8×4)÷6213. 2-6+3×2214.(2-6)÷4+32215.(2-150)÷6-40216.(20-50)÷(60-40)217. 4×26+173 + 297218. 36-(58+1872-24)219. 20×(150+37×16)220. 10÷(850-25×6)+44221.(744÷2+98)×43222.(9+98)×(203-168)223. 14×36-3213÷9224.(38-158)×(38+72)225. 26+84÷8-409226. 1×3÷5227. 2÷3÷5228. 8x11-178229. 17x11-17230. 17x11-78231. 3 × 40 - 4 232. 8 × 9 + 1233. 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+90×7282. 109×2+4×3283. 160×(50-46)284.
351+3-5285. 3-9×106 286. (4+30)+5287. 74+19×3288. 7+10×3289. 5-6×4÷2290.(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)×6297. 1+6×4-50 298. 7+(6÷6-8)299. 2-4+121÷11 300. 21×(806-799)附102×(-4.5)-(-3)×(-5) ÷2 7.8×6.9+2.2×6.9 (-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1) 5.6×0.258×(20-1.25) (-7.1) ×〔(-3)×(-5)〕÷2 -2.5×(-4.8)×(0.09)÷(-0.27) 127+352+73+44×(-2) 89×276+(-135)-33 25×71+75÷29 -88÷(-2) 243+89+111+57 ÷28×21 920- 690+47×52-398 148+ 360×24÷32+730 ×54 51+()×23 4215+()÷81 (247+18)×27÷25 36-720÷(360÷18) 1080÷(63-54)×80 (528+912)×5-6178 -904 264+318-8280÷69 (174+209)×26- (9000^0) 814-(278+322)÷15 ÷45 ÷38+504 796-5040÷(630÷7) 285+()÷36 1+5/6-19/12 3x(-9)+7x(-9) (-54)x1/6x(-1/3) 5+21*8/2-6-59 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4) 1/2+3+5/6-7/12 [2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3 -2*8-8*1/2+8/1/8 (2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1) +√9 2/(-2)+0/7-(-8)*(-2) (1/4-5/6+1/3+2/3)/1/2 18-6/(-3)*(-2) ×2^7 (5+3/8*8/30/(-2)- √36 (-84)/2*(-3)/(-6) 1/2*(-4/15)/2/3 1+2+3+4+......+100000 1/1+1/2+1/3+......1/50 1+1/2+1/4+1/8+1/16+......1/512 3+9+27+81+243+......9999 1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90 5+21*8/2-6-59 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4) 1/2+3+5/6-7/12 [2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3 -2*8-8*1/2+8/1/8 (2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1) 2/(-2)+0/7-(-8)*(-2) (1/4-5/6+1/3+2/3)/1/2 18-6/(-3)*(-2) (5+3/8*8/30/(-2)-3 (-84)/2*(-3)/(-6) 1/2*(-4/15)/2/3 -1+2-3+4-5+6-7 -50-28+(-24)-(-22) -19.8-(-20.3)-(+20.2)-10.8 0.25- +(-1 )-(+3 ) -1-〔1-(1-0.6÷3)〕×〔2-(-3)×(-4)〕 0÷(-4)-42-(-8)÷(-1)3 -32-(-3) 2-(-3)3+(-1)6 3×(-2)2+(-2×3)2+(-2+3)2 (-12)÷4×(-6)÷2 (-12)÷4×(-6)×2 75÷〔138÷(100-54)〕 85×(95-1440÷24) 80400-(÷15) 240×78÷(154-115) ×563 〔75-(12+18)〕÷15 2160÷〔(83-79)×18〕 280+840÷24×5 325÷13×(266-250) 85×(95-1440÷24) 58870÷(105+20×2) ×563 81432÷(13×52+78) [37.85-(7.85+6.4)] ×30 156×[(17.7-7.2)÷3] (947-599)+76×64 36×(913-276÷23) -(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕 (31.8 3.2×4)÷5 194-64.8÷1.8×0.9 36.72÷4.25×9.9 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] (136+64)×(65-345÷23) (6.8-6.8×0.55)÷8.5 0.12× 4.8÷0.12×4.8 (58+37)÷(64-9×5) 812-700÷(9+31×11) (3.2×1.5+2.5)÷1.6 85+14×(14+208÷26) 120-36×4÷18+35 (284+16)×(512-8208÷18) 9.72×1.6-18.305÷7 4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10 12.78-0÷( 13.4+156.6 ) 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6 85+14×(14+208÷26) (58+37)÷(64-9×5) (6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18) 0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6 120-36×4÷18+35 10.15-10.75×0.4-5.7 5.8×(3.87-0.13) +4.2×3.74 347+45×2-4160÷52 32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5) [(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6 5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6 3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6 5.8×(3.87-0.13)+4.2×3.74 33.02-(148.4-90.85)÷2.5 102×(-4.5)-(-3)×(-5) ÷2 7.8×6.9+2.2×6.9 (-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1) 5.6×0.258×(20-1.25) (-7.1) ×〔(-3)×(-5)〕÷2 -2.5×(-4.8)×(0.09)÷(-0.27) 127+352+73+44×(-2) 89×276+(-135)-33 25×71+75÷29 -88÷(-2) 243+89+111+57 ÷28×21 920- 690+47×52-398 148+ 360×24÷32+730 ×54 51+()×23 4215+()÷81 (247+18)×27÷25 36-720÷(360÷18) 1080÷(63-54)×80 (528+912)×5-6178 -904 264+318-8280÷69 (174+209)×26- (9000^0) 814-(278+322)÷15 ÷45 ÷38+504 796-5040÷(630÷7) 285+()÷36 1+5/6-19/12 3x(-9)+7x(-9) (-54)x1/6x(-1/3) 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4) 1/2+3+5/6-7/12 [2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3 -2*8-8*1/2+8/1/8 (2/3+1/2)/(-1/12)*(-12) (-28)/(-6+4)+(-1) +√9 2/(-2)+0/7-(-8)*(-2) (1/4-5/6+1/3+2/3)/1/2 18-6/(-3)*(-2) ×2^7 (5+3/8*8/30/(-2)- √36 (-84)/2*(-3)/(-6)
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加减乘除运算(含答案).doc 32页
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加减乘除运算(含答案)
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加减乘除运算(含答案)
20-8×2÷4 420×(13+57)×90
66×38-987÷21
196÷4+56×12 16×50-36÷4
(73+65)÷(210-164)
(13+47)×(52-18) ()÷(24+38)
45 × 2/3 + 1/3 × 15
7/19 + 12/19 × 5/6
1/4 + 3/4 ÷ 2/3
8/7 × 21/16 + 1/2
101 × 1/5 – 1/5 × 21
50+160÷40 (58+370)÷(64-45)
120-144÷18+35
347+45×2-4160÷52
(58+37)÷(64-9×5) 95÷(64-45) 178-145÷5×6+42 420+580-64×21÷28
812-700÷(9+31×11) (136+64)×(65-345÷23) 85+14×(14+208÷26)
(284+16)×(512-8208÷18)
120-36×4÷18+35
1.125*3+125*5+25*3+25
*11*(101-92)
(23/4-3/4)*(3*6+2)
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
101 × 1/5 – 1/5 × 21
50+160÷40
120-144÷18+35
347+45×2-4160÷52
(58+37)÷(64-9×5) 95÷(64-45) 178-145÷5×6+42
812-700÷(9+31×11)
41.85+14×(14+208÷26)
43.120-36×4÷18+35
44.(58+37)÷(64-9×5)
45.(6.8-6.8×0.55)÷8.5
46.0.12× 4.8÷0.12×4.8
47.(3.2×1.5+2.5)÷1.6
48.6-1.6÷4= 5.38+7.85-5.37=
49.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
50.6.5×(4.8-1.2×4)=
51.5.8×(3.87-0.13)+4.2×3.74
52.32.52-(6+9.728÷3.2)×2.5
53.[(7.1-5.6)×0.9-1.15] ÷2.5
54.5.4÷[2.6×(3.7-2.9)+0.62]
55.12×6÷(12-7.2)-6
56.12×6÷7.2-6
57.0.68×1.9+0.32×1.9
58.58+370)÷(64-45)
59.420+580-64×21÷28
60.136+6×(65-345÷23)
15-10.75×0.4-5.7
62.18.1+(3-0.299÷0.23)×1
63.(6.8-6.8×0.55)÷8.5
64.0.12× 4.8÷0.12×4.8
65.(3.2×1.5+2.5)÷1.6
66.3.2×6+(1.5+2.5)÷1.6
67.0.68×1.9+0.32×1.9
68.10.15-10.75×0.4-5.7
69.5.8×(3.87-0.13)+4.2×3.74
70.32.52-(6+9.728÷3.2)×2.5
71.[(7.1-5.6)×0.9-1.15] ÷2.5
72.5.4÷[2.6×(3.7-2.9)+0.62]
12×6÷(12-7.2)-6
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