11.01+19.96÷49.9×0-4.99÷49.
问题描述:
11.01+19.96÷49.9×0-4.99÷49.
答
11.01+19.96÷49.9×0-4.99÷49.9
=11.01+0-0.1
=11.01-0.1
=10.91