问题 解答题
直接写得数:
5.1-2=______;
7.2÷1.2=______;3.86×10=______;3.9×0.01=______;
1-0.55=______;0.4×0.3=______;98.4÷100=______;3.4+0.76=______.
答案

5.1-2=3.1;7.2÷1.2=6;3.86×10=38.6;3.9×0.01=0.039;
1-0.55=0.45;0.4×0.3=0.12;98.4÷100=0.984;3.4+0.76=4.16.
故答案为:3.1,6,38.6,0.039,0.45,0.12,0.984,4.16.

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