（2.992+29.92+299.2）除以0.111
问题描述：
（2.992+29.92+299.2）除以0.111
答
等于 2992
2.992=299.2×0.01
29.92=299.2×0.1
299.2=299.2×1
希望对你有帮助
答
=(2.992+2.992×10+2.992×100)÷0.111
=2.992×(1+10+100)÷0.111
=2.992×111÷0.111
=2.992×1000
=2992