题目内容
【题目】火眼金睛。(对的打“√”,错的打“×”,并改正)
8 | 3 | 0 | |
-4 | 8 | 0 | |
4 | 5 | 0 | |
( | ) |
2 | 4 | 0 | |
+5 | 7 | 0 | |
7 | 1 | 0 | |
( | ) |
【答案】×
8 | 3 | 0 |
-4 | 8 | 0 |
3 | 5 | 0 |
×
2 | 4 | 0 |
+5 | 7 | 0 |
8 | 1 | 0 |
【解析】略

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题目内容
【题目】火眼金睛。(对的打“√”,错的打“×”,并改正)
8 | 3 | 0 | |
-4 | 8 | 0 | |
4 | 5 | 0 | |
( | ) |
2 | 4 | 0 | |
+5 | 7 | 0 | |
7 | 1 | 0 | |
( | ) |
【答案】×
8 | 3 | 0 |
-4 | 8 | 0 |
3 | 5 | 0 |
×
2 | 4 | 0 |
+5 | 7 | 0 |
8 | 1 | 0 |
【解析】略