(7)負の数をひく (解答) | 学習日 月 日( ) | |||
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足し算になおして,次の計算をしなさい。 | |||
1 | (+5)−(−3) = (+5)+(+3) = +8 |
2 | (−4)−(−7) = (−4)+(+7) = +3 |
3 | (+4)−(−2) = (+4)+(+2) = +6 |
4 | (−7)−(−1) = (−7)+(+1) = −6 |
5 | (+2)−(−8) = (+2)+(+8) = +10 |
6 | (−6)−(−3) = (−6)+(+3) = −3 |
7 | (+5)−(−2) = (+5)+(+2) = +7 |
8 | (−1)−(−9) = (−1)+(+9) = +8 |
9 | (+1)−(−1) = (+1)+(+1) = +2 |
10 | (−5)−(−7) = (−5)+(+7) = +2 |
11 | (+5)−(−4) = (+5)+(+4) = +9 |
12 | (−8)−(−3) = (−8)+(+3) = −5 |
13 | (+12)−(−10) =(+12)+(+10)=+22 |
14 | (−20)−(−80) =(−20)+(+80)=+60 |
15 | (+30)−(−20) =(+30)+(+20)=+50 |
16 | (−50)−(−50) =(−50)+(+50)= 0 |
17 | (+11)−(−11) =(+11)+(+11)=+22 |
18 | (−15)−(−25) =(−15)+(+25)=+10 |
19 | 0−(−0.9) = 0+(+0.9) = +0.9 |
20 | (−)−(−) = (−)+(+) = − |
[トップに戻る] [問題に戻る] |