| (15)四則混合の計算2 (解答) | 学習日 月 日( ) | |||||||||
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| 1 | 8+(2+3) = 8+5 = 13  | 
    2 | 3+(7−2) = 3+5 = 8  | 
  
| 3 | 10−(5+1) = 10−6 = 4  | 
    4 | 9−(4−3) = 9−1 = 8  | 
  
| 5 | (9−7)×2 = 2×2 = 4  | 
    6 | (12−8)÷4 = 4÷4 = 1  | 
    
| 7 | 3×(3+5) = 3×8 = 24  | 
    8 | 48÷(4+4) = 48÷8 = 6  | 
  
| 9 | (10−12)×4 = (−2)×4 = −8  | 
    10 | (20−6)÷(−7) =14÷(−7)= −2  | 
  
| 11 | 9×(3−6) = 9×(−3) = −27  | 
    12 | (−36)÷(5+7) =(−36)÷12= −3  | 
  
| 13 | 12−(2+5−4) = 12−3 = 9  | 
    14 | (9−7)3 = 23 = 8  | 
    
| 15 | (4+1)−(2+3) = 5−5 = 0  | 
    16 | (7−2)+(6−3) = 5+3 = 8  | 
  
| 17 | (2+3)+(1−9) = 5+(−8) =−3  | 
    18 | (−4+4)+(8−10) =0+(−2)= −2  | 
  
| 19 | 7−{ 9+(2−6) }=7−{ 9+(−4) } =7−5= 2  | 
    20 | 10÷{ 4+(−3)×2 } =10÷{ 4+(−6) } =10÷(−2)= −5  | 
  
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