北师大版五年级数学下册解方程100题

1、8 12 x =4 15x = 解方程5 11. x =2.2 13 63.4x7.5134. x0.6 x55.56x3.36.45x =107.1 3x =2 48.1 1 1 = 14 3 69.813 7 x =71 410. 20% =5 511. x -38x =2012.2 4 35 9 813. x -14x = 2414. 4 x +12x = 915.59+ 2 x =2316.58x -3 2=5 517.1 1x + x =3643 41 918. 1 x =9 81 119.35x =203420.2 2 5 2 x x =12 21. 7 x =3 5 12 322

2、. x1 1x =4 923. 4 x7.51324. 9.8-2 x =3.825.1 1 1a+ =6 3 226. x3x =2427.x x53 21 128. 8.65+ -a + =03 629. x -15x =20430. x =36931.45x=182532. x13x1233. 3 x1 78 162 8 174 16 5 134. x = 35. x - x =15 36. x = 0.6 5 15 8 237. 15 x +6 x = 16838.1 1x - =4 239. 2 x +5 = 4040. 3.5 x = 14041. 20% x3042. 5 x31

3、0 5=7 743. 523x =1344. 2 x -431x =45. 1.5 x =2.255 1046. x =11 1647. x =8 3348.58x30% x72049.3 5 8x =4 4250. x451. 37.520% x69.5= 7 14 52. x - x =15 2553. 4.2 33x = 5.154. 13.7x = 5.2955.1 2x9 356.1 420% x =5 557.1 1x x = 1 4 31658. 12 x =1259.5 10 5 x =7 21 1460.6 3 7x =5 7 361. x58x =1562. x20% =

4、2063. x6 9 3 =7 14 464. 44 x1=322x65. 1.5 x =28.566. 0.5+ x+ x=9.8269. 367. x52=4068.72 x -6=848 =426 9 3 70. x =7 14 471.1 1 3 6 x 5 = 72. x =3 3 5 773.3 11 11x 45 4 2074. x 2 6x 7 775. 1.5 x +6=3 x76.5 3 2x - =8 5 577.5 2 5 2 35 ( ) x x 8 15 12 3 678.35x + 2.58=9579.53-x2=8 80.17 3x =20 45 581. x =150 8 61 4 1 82. x =4 7 283.125 5x =8 322 3 1 3 10 584. 6 x = 85. x - 8 = 86. x =7 14 4 8 21 1487. 5 x 3 7 7 2= 88. x = 89. 4 8 12 5 3 1 1 x= 5 1590.341 1 x 5 = 12 291.121 1 x 1 62 292.x 15% 25.593. x 14x 2094. 6 4 12x 1295.x 10% x 3.396.