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7.2÷O.18=40;
29.4÷O.28=105;
验算:
1 0 5×0.2 8
. 8 4 0
2 1 0 2 9.4 0
197.6÷0.52=380;
l÷0.125=8;
验算:
0.1 2 5× 8
. 1.0 0 0