1、(1)0.8331.25(2)10(3)9.564.8751.44(4)6(5)4.68.45(6)15.632(1)3.6(7)46(8) (9)801.25(10)251.2548(11)0.73.94.36.1(12)7.35997.35(13)47817(14)46101(15)15.6(16)x -x=45(17)1414(18)(19)(20)3(21) (22)(23)(24)75(25)()24(26)20532656(27)20%x=80 (28)()(29)1.750.4(30)30%x+9=39 (31)40%x+15=55 (32)()45(33)2()(34)0.31
2、(3.32.95)(35)50%x-6=44 (36)()()(37)()(38)()35(39)24()(40) 60%x+30%x=90(41)()(42) (2-1.60.5+1.2)8%(43)8.64.3(44)(0.25)(45)3.6(4.72.3)1.2(46)96%3-(0.6+2.40.2)(47)250%15%240%(48)12.5%19+12.5%1.3(49)(50)(51)()(52)60()(53)(2-1.60.5+1.2)8%(54) 60%+2.1 12%(55)()(56)15%1.25680%(57)6.7890%+67.8%(58)12()(59)(
3、910)(60)101.125.935.10.85(61)( )(1)(62)2.6(63)3 (64)- 50%=12(65)(66)()(67)()(68)1.252.2(69)81.25(70)44(71)()(72)(73)=240 (74)(75)(10) (76)x- 0.8x = 16+6(77)()(78)25.12517.4(79)0.3874(80)12.32.455.74.55(81)1712(82)() (83)20 x 8.5= 1.5 (84) x- x -4= 21 (85) XX= (86)()(87)(20.121)5.1(88)7.65.41.95.4(89
4、)0.2(0.15)(90)24(5) (91) (92)(93) (94) (95)1516(96)3.641(2.09)(97)()45 (98)()5(99) (+)=(100)35% 28+28 65%(101)()(102)1010(103)(104)7(0.352)(105)()(106)4143(107)()(108)8.50.7556.51(109)10.540.90.75(110)999(111)24()3(112)()(113)()(114)()(115)(116)()(117)(1)(118)(5)(119)(1)(120)(121)()(122)41()(123)3.255.48(124)(125)(4)(126)(111999)56()(127)()160(128)15(25)(129)6.41.253(130)0.254()(131)(132)()(133)()(134)5.616.570%1.1(135)280(7.286.72)