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月 日（ ）
● 次の計算をしなさい [0A5-10]
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| (2) | | | | | | | | | | | | | | | | | ( | 0.8 | c | ＋ | 0.1 | ) | − | ( | −0.9 | c | − | 0.8 | ) | | | | | | | | | | | | | | | | |
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| (3) | | | | | | | | | | | | | | | | | ( | 0.8 | m | ＋ | 0.8 | ) | ＋ | ( | −0.9 | m | ＋ | 0.4 | ) | | | | | | | | | | | | | | | | |
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| (5) | | | | | | | | | | | | | | | | | ( | 0.9 | m | ＋ | 0.8 | ) | ＋ | ( | −0.6 | m | ＋ | 0.2 | ) | | | | | | | | | | | | | | | | |
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| (6) | | | | | | | | | | | | | | | | | ( | 0.1 | a | − | 0.1 | ) | ＋ | ( | −0.8 | a | ＋ | 0.2 | ) | | | | | | | | | | | | | | | | |
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| (7) | | | | | | | | | | | | | | | | | ( | −0.3 | x | ＋ | 0.5 | ) | − | ( | −0.4 | x | ＋ | 0.8 | ) | | | | | | | | | | | | | | | | |
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