七年级上册数学简便脱式计算列式计算：7.91x3+3x2.198.67-5.8+1.33853-147-25354x23+77x54420-281600-(720+650-13)(103-141-47)x57200-25-48x(40+20)42-(90-30)18-(24-4)10.5 -1.5-3.5145+78+255125x32656-164-366.84+0.6+1.4+5.1654.25-2.14-7.864.8+0.2-4.8+0.2(148-111-37)x9127+885-59x72.45+3.8+0.55(2296+7344-36)x2.41-0.45-0.9-7/80.36x[(2+3.8)-0.04]68x35-408-2447.5 -(0.6+6.4-0.32)44.08-44.08-5.8(309x17+375)-843.35x6.4x2+6.7x3.63060-15-2.5x1.0475x23+14154-190.16+4-(38-18)37-[195-(145+47)]35-[(15+13)-29]37-[195-(145+47)]35-[(15+13)-29]6-35-35-6(10000-0.16x1900)-9638x[89-(56-34)]168.1-(4.3x2-0.4)306x15-2080100-91-13(100-91)-137.73-2.3-0.5x0.81025-4050-54(100-19)^(1.63+1.07)498+9870^35420.5 -294-2.8x2.8.82x15—1005400-2940-28x27(20.2x0.4+7.88)-4.221.6-0.8x4—0.8(9+92+93)x0.0113.5x[1.5x(1.07+1.93)]1498+1068-894.2-1.5-0.360.54x1.75+8.25x0.5478x〔67-(121+37)(80-9.8)x0.6-2.1简算：45.55-(6.82+15.55)34.52-17.87-12.236.43-(1.4-0.57)23.75-8.64-3.4617.83-9.5-7.83-0.55.38+88.2-2.38+1.827.38-5.34+2.62-4.6621.63-(8.5+9.63)7.5-2.45+7.5+2.450.9+0.99+0.9995.09-(0.09+1.23)9.36-(4.36-3.5)609-708+306-108+202-198+497-10014+15+16+......+45+469999+9998+9997+999699999x26+33333x2219175-59+67836.5x1.4-8.51-3.71.3-3.79+9.7-6.218x0.4x12.5x2.5125x(8+0.8+0.08)35-〔78-(25+38)〕1.7+150+3.9817.625-(4.4+58)3.35x6.47x2+6.7x3.618.7-3.375-6.6252.5x4.425x1.25x32(3.75+4.1+2.35)x9.81.28+9.8+7.72+10.212x1120+12x20491. 3/7x49/9-4/316.5/9x18 一 14x2/72. 8/9x15/36+1/273. 12x5/6 一 2/9x34. 8x5/4+1/45. 6-3/8 一 3/8-66. 4/7x5/9+3/7x5/97. 5/2-(3/2+4/5)8. 7/8+(1/8+1/9)9. 9x5/6+5/610. 3/4x8/9-1/30.12x+1.8x0.9=7.2(9-5x)x0.3=1.026 似决=28+4.411. 7x5/49+3/1412. 6x(1/2+2/3)13. 8x4/5+8x11/514. 31x5/6-5/615. 9/7-(2/7 一 10/21)17. 4/5x25/16+2/3x3/418. 14x8/7 一 5/6x12/1519. 17/32-3/4x9/2420. 3x2/9+1/321. 5/7x3/25+3/722. 3/14xx2/3+1/623. 1/5x2/3+5/624. 9/22+1/114-1/225. 5/3x11/5+4/326. 45x2/3+1/3x1527. 7/19+12/19x5/628. 1/4+3/4-2/329. 8/7x21/16+1/230. 101x1/5-1/5x2131.50+160-40(58+370)-(64-45)32.120-144-18+3548.10.15-10.75x0.4-5.733.347+45x2-4160^5234(58+37)^(64-9x5)35.95^(64-45)36.178-145-5x6+42420+580-64x21-2837.812-700-(9+31x11)(136+64)x(65-345-23)38.85+14x(14+208-26)39.(284+16)x(512-8208-18)40.120-36x4-18+3541. (58+37)-(64-9x5)42. (6.8-6.8x0.55)-8.543.0.12x4.8-0.12x4.844.(3.2x1.5+2.5)-1.6(2)3.2x(1.5+2.5)-1.645.6-1.6-4=5.38+7.85-5.37=46.7.2-0.8-1.2x5 二 6-1.19x3-0.43=4765x(4.8-1.2x4)=0.68x1.9+0.32x1.949.5.8x(3.87-0.13)+4.2x3.7450.32.52-(6+9.728-3.2)x2.5
