251 五年级数学单元测试系列一之第四单元测试9 附答案

251 五年级数学单元测试系列一之第四单元测试9

解方程(※要检验)

(1)(10x-90+2x)÷2=75                                               (2)(7x-3x+59)÷3=29

(3)(32x-7x-5x)×5=100                                              ※(4)(15x-6x)÷3=81

(5)5x+4x-24=66                                                          (6)12x+36-6x=102

(7)2x-48-x=54                                                             ※(8)2x-1+x=14

(9)9x-8=x                                                                    (10)12x+12=16x

(11)8x=42+x                                                               ※12x-35=5x

251 五年级数学单元测试系列一之第四单元测试9 答案

解方程(※要检验)

(1)x=20                                    (2)x=7

(3)x=1                                      ※(4)x=27

(5) x=10                                 (6)x=11

(7) x=102                                 ※(8) x =5

(9)x=1                                      (10) x=3

(11) x=6                                          ※x=5