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）100+99+98-97-96+95+94-93-92+...+7+6-5-4+3+2-1=200 (2)(1+1/2+1/3+1/4)x(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)x(1/2+1/+1/4)=1/5 (3)9999*2222+3333*3334=33330000 (4)9999*7+1111*37=11110000 (5)3333*3333+9999*8889=99990000 (6)7.7*7+7.7+2*7.7=77 (7)125*25*3232*69=696900000 (8)14.8*6.3+45.5*4.5+8.3*3.7+0.465*550-6.3*6.5=548 (9)(2.5+2.5+2.5+2.5)*25*8=2000 (10)97*2000-96*2001=1904
1. 6÷ 3/8 – 3/8 ÷6 =1/6x(3/8-3/8)=1/6x0=02. 4/7 × 5/9 + 3/7 × 5/9 =(4/7+3/7)x5/9=1x5/9=5/93. 5/2 -（ 3/2 + 4/5 ）=5/2-3/2-4/5=1-4/5=1/54. 6 ×（ 1/2 + 2/3 ）=6x1/2+6x2/3=3+4=75. 8 × 4/5 + 8 × 11/5=8x(4/5+11/5)=8x3=24 6. 31 × 5/6 – 5/6 =(31-1)x5/6=30x5/6=257. 4/5 × 25/16 + 2/3 × 3/4 =5/4+1/2=5/4+2/4=7/48. 101 × 1/5 – 1/5 × 21 =(101-21)x1/5=80x1/5=16
追问可以分开吗，看不清了，还有怎么没有答案呢？