正負の数の計算(四則演算)|中1数学

2016/3/18

Shinichiro Sakamoto

広告

問題

  1. 1 - 3
  2. 5 - (-8) + 3
  3. (-12) - (-25) - (-18)
  4. 2 × (-3) + 5
  5. (-8) × (-7) + 4 × (-2)
  6. (-5) × (-5) + 5 × (-5)

計算1

計算2

計算3

解答

  1. -2
  2. 16
  3. 31
  4. -1
  5. 48
  6. 0

問題

  1. 8 ÷ (-2)
  2. (-9) ÷ 3 + 7
  3. 3 × (1 - 5)
  4. (2 - 8) ÷ (-2)
  5. (3 - 4) × (4 - 6)
  6. (1 - 10) ÷ (-3) + 2 × (-3)

解答

  1. -4
  2. 4
  3. -12
  4. 3
  5. 2
  6. -3

問題

  1. (-2)3 + 6
  2. 42 - (-3)3
  3. (1 - 8)2
  4. -32 + 12
  5. -23 - 32
  6. -2 × (2 - 5)2

解答

  1. -2
  2. 43
  3. 49
  4. 3
  5. -17
  6. -18

問題

  1. -10 × (1.2 - 1.7)
  2. 2.4 ÷ (-0.6) - 32
  3. (3.14 - 6.28) × (-3)
  4. 2/3 × (2 - 5)

解答

  1. 5
  2. -13
  3. 9.42
  4. -2

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