(6)式と数の除法(解答) 学習日    月    日(   )
(多項式)÷数  …後ろから分配
  =3x+2

  =9x−3
 
分配法則を使って,次の計算をしなさい。
 (12x+15)÷3 = 4x+5

 
 (8x−4)÷4 = 2x−1

 
 (10x−6)÷2 = 5x−3

 
 (45x+25)÷5 = 9x+5

 
 (6a+30)÷6 = a+5

 
 (60y−12)÷12 = 5y−1

 
 (32x+48)÷16 = 2x+3

 
 (75x−50)÷25 = 3x−2

 
 (−24a+18)÷6 = −4a+3

 
10  (16x−24)÷(−8) = −2x+3

 
11  (54x−81y)÷9 = 6x−9y

 
12  (49a+63b)÷(−7) = −7a−9b

 
13  (12x+21y+9)÷3 = 4x+7y+3

 
14  (−9a+6b−15c)÷(−3)
 = 3a−2b+5c
 
15  (20x+5)÷10 = 2x

 
16  (3x−12)÷6= x−2

 
17
 ( x )÷2=   x

 
18
 ( x+1)÷3=   x

 
19
  (2xy−3)÷  = (2xy−3)×2
 = 4x+2y−6
 
20
 (6a−15b−9)÷  = (6a−15b−9)×
 = 8a−20b−12
 

トップに戻る] [問題に戻る