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1、-五年级上册数学解方程、小数计算练习-第 7 页小学五年级上册数学解方程计算题(1)(0.5+x)+x=9.82(2)2(X+X+0.5)=9.8(3)25000+x=6x(4)3200=440+5X+X(5)X-0.8X=6(6)12x-8x=4.8(7) 7.5+2X=15(8)1.2x=81.6(7)x+5.6=9.4(10)x-0.7x=3.6(11)91x1.3(12) X+8.3=10.7(13) 15x3(14) 3x816(15) 3x+9=27(16) 18(x-2)=270(17) 12x=300-4x(18) 7x+5.3=7.4(19) 3x5=4.8(25) 0.5x
2、+8=43(26) 6x-3x=18(27) 7(6.5+x)=87.5(28) 0.273x=0.35(29) 1.8x=0.972(30) x0.756=90(31) 0.1(x+6)=3.30.4(32) (27.5-3.5)x=4(33) 9x-40=5(34) x5+9=21(35) 48-27+5x=31(36) 10.5+x+21=56(37) x+2x+18=78(38) (200-x)5=30(39) (x-140)70=4(40) 20-9x=2(41) x+19.8=25.8(42) 5.6x=33.6 (43) 9.8-x=3.8 (44) 75.6x=12.6 (45
3、) 5x+12.5=32.3 (46) 5(x+8)=102 (47) x+3x+10=70 (48) 3(x+3)=50-x+3 (49) 5x+15=60 (50) 3.5-5x=2 (51) 0.37+4x=12.5 (52) x1.5-1.25=0.75 (53) 4x-1.36=2.6 (54) 6x+12.8=15.8 (55) 1502+3x=690 (56) 2x-20=4 (57) 3x+6=18 (58) 2(2.8+x)=10.4 (59) (x-3)2=7.5 (60) 13.2x+9x=33.3 (61) 3x=x+100 (62) x+4.8=7.2 (63) 6x
4、+18=48 (64)3(x+2.1)=10.5 (65)12x-9x=8.7 (66)13(x+5)=169 (67) 2x-97=34.2 (68)3.4x-48=26.8 (69)42x+25x=134 (70)1.5(x+1.6)=3.6 (71)2(x-3)=5.8 (72)65x+7=137(73) 9x+42.591(74) 4.2 x+2.5x134 (75) 10.5x+6.5x=51 (76) 89x-43x=9.2 (77) 5x-45=100 (78) 1.2x-0.5x=6.3 (79) 23.4=2x(80) 4x-x=48.6 (81) 4.5x-x=28 (82
5、)X-5.7=2.15 (83)5X-2X=18 (84)3X+0.7=7(85) 3.52= 4.2+x (86) 261.5= 2x+10 (87) 0.516160.2=4x (88) 13 9.25X=0.403 (89) 18.9X=0. 3 (90) 23x=14x27 (91) x14x=75(92)955x80 (93)1.8 +6x54 (94) 6.7x60.36.7 (95) 94x53(96) 2x+8=16 (97) 20x-14x=24 (98) x+7x=8 (99) 9x-3x=6(100) 6x-8=4 (101) 5x+x=9 (102) 8x-8=6x (
6、103) x=20 (104) 2x-6=12 (105) 7x+7=14 (106) 6x-6=0 (107) 5x+6=11 (108) 2x-8=10 (109) 2.5x-8=4 (110) x-=7 (111)3x+7=28(112) 3x-7=26 (113) 9x-x=16 (114) 24x+x=50(115) 1.2x-8=4 (116) 3x-8=31(117) 6x+6=12 (118) 3x-3=3 (119) 5x-3x=4 (120) 2x+16=19 (121) 5x+8=19 (122) 14-6x=8 (123) 15+6x=27 (124) 5-8x=4 (
7、125) 7x+8=15 (126) 9-2x=1 (127) 4+5x=9 (128) 10-x=8 (129) 8x+9=17(130) 9+6x=15 (131) x+9x=4+7 (132) 2x+9=17 (133) 8-4x=6 (134) 6x-7=28 (135) 7x-9=20(136) x-56=1 (137) 8-7x=1 (138)x-30=12 (139) 6x-21=21 (140) 6x-3=6 (141) 9x=18 (142) 4x-18=14 (143) 5x+9=11 (144) 17-2x=11 (145) x+4+8=23(146) 7x-12=9(1
8、47) X-5.7=2.15(148) 5X-2X=18 (149) 3X +0.5=5 (150) 3.52= 4 x (151) 261.5= 2x (152) 0.516160.1=4x (153) 9.26X=0.402(154) 36.9X=0.3 (155) X0.5=2.6(156) 935x80 (157) 180-6x54 (158) 94x40 (159) 0.2x0.40.53.7 (160) 9.4x0.4x16.2 (161) 924x20 (162) 7x6=1.4(163) 16x34x=1 (164) 18x14x=12 (165) 3 x4214=15 (16
9、6) 124x=56 (167) 2214x=12 (168) X+8.3=10.7 (169) 5x 30 (170) x-5.6=9.4 (171) x0.8=90(172) 3x816 (173) 3x+9=27 (174) 5.3+7x=7.4 (175) 3x5=4.8(176) X-0.8X=6 (177) 12x+8x=4.8 (178) 7(x-2)=49 (179) 48+2x=36(180) (x-2)3=7 (181) x5+9=21 (182)(300-x)5=30 (183) 91x 1.3 小数计算练习题7.65885= 0.1815= 0.02514= 3.063
10、6= 3.70.016= 532.07= 36.020.3= 56.788= 1.553.9= 16.90.13= 0.040.12= 3.842.6= 1.890.54= 7.10.25= 22.783.4 70.62= 12.250.5= 73.50.1= 1.6441 1.553.9= 7.5640.89= 0.152.34= 0.48350= 7.940.98= 56.24.98= 36.921.3= 1.968.5 80.40.35= 6.251.04= 0.0560.15 = 12.54.8= 4.228= 5.761.3= 7.1522= 15.613= 3.680.25= 3.
11、70.016= 0.45102= 2.050.82= 6.5090.27= 28.44814= 32607= 28.44814= 0.58250= 4.40.83.40.8 = 6-1.64= 3.2(1.5+2.5)1.6= 6.5(4.8-1.24) 5.38+7.85-5.37= 56-1.193-0.43= 0.82402.= (0.88)0.125= 1.2550.16= 4.299+4.2 = 0.2350.1516 = 35(0.352)= 0.520.40.05= 0.922.40.422.4= (1.25+0.25)4=2.95101-2.95= 4.60.35+4.60.6
12、5= 23.4-0.8-13.4-7.2=6310.1-630.1= 3.141.9+31.40.81= 7.310.2-1.46=12.96-(9.6-1.52)= 3.6 3.6+1.4 3.6= 2.71.5-2.7=0.250.80.1250.4 = 0.412.5(4.2-1.7) = 450.090.5=56.599+56.5= (1.25-0.125)8 17.8(1.784) =1.5(6.07+2.53)0.5= 4.051.50.03 = 1.920.122.7=4.632.559.3= 0.84(0.30.4)= 0.841.70.07=3.91.35= 20.9+10.5(5.23.5)= (6+10.883.2)1.5=18.918.91.4= 15.48(6.344.59)= 3.25.611.4=9.41.20.66.24= 3.760.250.49= 35.651.7=73.81.6413.85.36= 66.868.661.34= 0.2516.24=3.723.56.283.5= 36.83.96.1 2= 5.48(9.40.52)=