1、 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 +
2、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 5016040 120-14418+35 347+452-416052 37(58+37)(64-95) 95(64-45) 178-14556+42 812-700(9+3111) 85+14(14+20826) 120-364(6.8-6.80.55)8.5 0.12 4.84.8 (3.21.5+2.5)1.6 6-1.64= 5.38+7.85-5.37= 7.2
3、0.8-1.25= 6-1.193-0.43= 6.5(4.8-1.24)= 5.8(3.87-0.13)+4.23.74 32.52-(6+9.7283.2)2.5 (7.1-5.6)0.9-1.15 5.42.6(3.7-2.9)+0.62 (12-7.2)-6 7.2-6 0.681.9+0.321.9 58+370)420+580-642128 136+6(65-34523) 15-10.750.4-5.7 18.1(30.2990.23)1 3.26+(1.5+2.5)10.15-10.7533.02(148.490.85)76.(25%-695%-12%)*36 77./4*3/5
4、+3/4*2/5 78.1-1/4+8/9/7/9 79.+1/6/3/24+2/21 80./15*3/5 81.3/4/9/10-1/6 82./3+1/2)/5/6-1/3/1/7 83./5+3/5/2+3/4 84.(2-2/3/1/2)*2/5 85.+5268.32-2569 86.3+456-52*8 87.5%+6325 88./2+1/3+1/4 89+456-78 5%+. 3/7 239495/7 6/2 -( 3/2 + 4/5 ) 8 + ( 1/8 + 1/9 ) 1/4 10 1.5 29 3.1 4/7 - ( 2/7 10/21 ) 19 5 4 7/32
5、3/4 2/31/21/42/5 26/139/262/3 2/91/24/53/8 105/91/64 1/22/59/109/20 5/93/102/71/21/44/51/8 3/45/74/31/2 238/91/271/27 5/62/51/23/45/124/5 8/93/43/83/4 5/85/43/239/11 1.22.5+0.88.91.25-0.91.25 12.57.40.8 9.96.4-(2.5+0.24) (27) 6.59.5+6.50.5 0.351.6+0.353.4 0.258.66.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9
6、3-(25-2.5) 41846-620-380 4.846+4.854 0.8+0.81.253.62.5-12.52.4 2812.5-12.520 23.65-(3.07+3.65) (4+0.40.25)871.6599+1.65 27.85-(7.85+3.4) 481.25+500.28 7.89.9+0.78 (1010+309+4+681+6)12 91467826854 5.157/8+6.1-0.60625 9. 9 40 (58+370)6+42 420+580-6411) (136+64)(284+16)(512-820818) 1.6 (2)3.2(1.5+2.5)5
7、.38+7.85-5.37 5 6-1.193-0.43 47.6.54) 48.10.15-10.7549.5.850.32.52-(6+9.72851.(7.1-5.6)52.5.453.12(12-7.2)-6 (4)12102(-4.5)-(-3)(-5) 6.92.26.9 (-2)+2-(-52)(-1) 5+87(-3)(-1) 5.60.258(201.25) (-7.1) (-3)(-5)-2.5(-4.8)(0.09)(-0.27) 127+352+73+44(-2) 89276+(-135)-33 2571+7529 -88243+89+111+57 9405-29402
8、1 920-1680407 690+4752-398 148+332864-75 3602432+730 2100-94+4851+(2304-2042)23 4215+(4361-716)81 (247+18)2725 36-720(3601080(63-54)80 (528+912)5-6178 85284138-904 264+318-828069 (174+209)26- (90000) 814-(278+322)15 1406+735945 3168-782838+504 796-5040(6307) 285+(3000-372)36 1+5/6-19/12 3x(-9)+7x(-9) (-54)x1/6x(-1/3) 1.18.1(30.299
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