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月 日（ ）
● 次の計算をしなさい [0AA-20]
| (1) | | | 2 | | | | | | 3 | | | | | 9 | | | 7 | | | | − | × | ( | − | a | ＋ | ) | ＋ | ( | − | a | − | ) | | | 3 | 4 | 7 | 5 | | | | | | | | | | | | | | |
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| (2) | | | 3 | | | | 7 | | | 9 | | | 3 | | | | 4 | | | 1 | | | | − | × | ( | − | a | ＋ | ) | ＋ | × | ( | − | a | − | ) | | | 2 | 5 | 7 | 7 | 3 | 2 | | | | | | | | | | | | | | | |
|
| (3) | | | 2 | | | | 3 | | | 4 | | | 5 | | | 1 | | | 5 | | | | − | × | ( | − | x | − | ) | ＋ | × | ( | x | ＋ | ) | | | 5 | 2 | 7 | 7 | 4 | 6 | | | | | | | | | | | | | | |
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| (4) | | | 3 | | | | | | 4 | | | 6 | | | 3 | | | 1 | | | | − | × | ( | − | a | ＋ | ) | − | × | ( | a | − | ) | | | 2 | 7 | 7 | 2 | 3 | | | | | | | | | | | | | | |
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