(2.992+29.92+299.2)除以0.111
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(2.992+29.92+299.2)除以0.111(2.992+29.92+299.2)除以0.111(2.992+29.92+299.2)除以0.111=(2.992+2.992×10+2.992
(2.992+29.92+299.2)除以0.111
(2.992+29.92+299.2)除以0.111
(2.992+29.92+299.2)除以0.111
=(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
等于 2992
2.992=299.2×0.01
29.92=299.2×0.1
299.2=299.2×1
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