1、(2) 36X 10.1(4) 22. 2X4+17. 8X4(2)(37-3.6 一4.8 ) 一 12.5(4) 15.6 一 16X (0.25+1.25 )777X 9+1111X30.8 X 15.5 -(3.21+5.79)31.5 X 4-(6+3)2-2.5+2.5 2(31.8+3.2 X 4) - 50.64 X 25X 7.8+2.2(4121+2389) 724 2.4 - 2.5 X 0.8671X15-974469 X 12+149219.4 X 6.1 X 2.35.67 X 0.2 -0.629. 9x5 * 6+5* 610. 3 * 4x8*9 -1* 31
2、4. 31x5 *6-5*616. 5 *9x18-14x2*720. 3x2 * 9+1* 335. 95 *( 64-45 )36. 178- 145* 5X 6+427.2 * 0.8 -1.2 X 56.5 X( 4.8- 1.2 X 4)28- (3.4+1.25 X 2.4)2.55 X 7.1+2.45 X 7.1777X 9+1111X 3(31.8+3.2 X 4)* 531.5 X 4* (6+3)(4121+2389) 一 7405X (3213 -3189)18.1 X 0.92+3.930.043 X 24+0.8750.4 X 0.7 X 0.250.78+5.43
3、6+14.07 X 0.86+9.12240X 78-( 154-115 )1437X 27+ 27X 56375- (12+18)- 15325一 13X (266 - 250)85 X (95 - 1440-24)58870一 (105 + 20X 2)(7.85+6.4 ) X 3081432- (13 X 52+ 78) 37.85-(947 599)+ 76 X 6436 X (913 - 276-23)192 -( 54 + 38) X 6781432- (13 X 52+ 78)(947 - 599)+ 76 X 6460 - (9.5 + 28.9) 一 0.182.881 -
4、 0.43 - 0.24 X 3.50.8 X 15.5-(3.21+5.79)31.8 3.2 X 4)-5194 - 64.8 - 1.8 X 0.9812- 700-( 9+31X 11)156X (17.7 - 7.2) 一 3(3.2 X 1.5+2.5 )- 1.685+14X( 14+208- 26)120- 36 X 4- 18+359.72 X 1.6 -18.305 -73.2 X( 1.5+2.5 )- 1.6(58+37)-( 64-9 X 5)(6.8- 6.8 X 0.55) 一 8.50.12 X 4.8 - 0.12 X 4.815- 10.75 X 0.4 -
5、5.7347+45X2 -4160-52(58+37) 一 (64-9 X 5) (7.1-5.6 ) X 0.9-1.15 一 2.55.4 一 2.6 X( 3.7-2.9 ) +0.62120- 144-18+35347+45X2 -4160- 52(58+37)一( 64-9 X 5)95-( 64-45)120-36X 4- 18+35 (6.8-6.8 X 0.55) - 8.5(31.8+3.2 X 4)- 52-2.5+2.5 - 25180-705X 624- 2.4 - 2.5 X 0.80.8 X (10 - 6.76) 一 1.219.4 X 6.1 X 2424+0.
6、875 X 990.75 X 102100-56.2331.50 + 160-40(58+370)-( 64-45)32.120- 144- 18+3533.347+45 X2 -4160- 5234 (58+37)一( 64-9 X 5)35.95 -( 64-45 )36.178- 145-5X 6+42420+580- 64 X 21-2837.812- 700-( 9+31X 11)(136+64)X( 65- 345-23)38.85+14 X( 14+208- 26)(3.2 X 1.5+2.5 ) - 1.63.2 X( 1.5+2.5 ) - 1.632.120- 144-18
7、+3535. 95一( 64-45 )36.178-145-5X 6+42(136+64) X (65-345-23)(284+16) X (512-8208一 18)(23.2 X( 1.5+2.5 ) - 1.645.6- 1.6 -4=5.38+7.85-5.37=46.7 - 0.8 -1.2 X 5=6-1.19 X3 -0.43=47.6.5 X( 4.8- 1.2 X 4)=0.68 X 1.9+0.32 X 1.9297X9991983X 21+21X 3017(0.123+123) X100934 X 24+34810.8 X 0.196+0.094105+895X 5732.47 X 23+2739.01 X 18.3 -90176.5+2- 2X 18449+23X 14