题目内容
| r | 3 | ______ | 0.4 | ______ | 3.5 | ______ |
| d | ______ | 5 | ______ | 12 | ______ | 4.2 |
3×2=6,
5÷2=2.5,
0.4×2=0.8,
12÷2=6,
3.5×2=7,
4.2÷2=2.1;
故答案为:6,2.5,0.8,6,7,2.1.
5÷2=2.5,
0.4×2=0.8,
12÷2=6,
3.5×2=7,
4.2÷2=2.1;
故答案为:6,2.5,0.8,6,7,2.1.
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