Question

906+901+904+892+902+895简便算法，求

Answer 1

906+901+904+892+902+895
=900×6+6+1+4-8+2-5
=540+13-13
=540

Answer 2

900+6+900+1+900+4+900-8+900+2+900-5=
900×6＋(6+1+4-8+2-5)=
5400+(6+1+4+2-8-5)=5400+(13-13)=5400