lawrencegao1998 lawrencegao1998 15-12-2020 Mathematics contestada please help 2×1,000+9×100+5×1+1×1100+3×11,000 2×1,000+9×10+5×110+1×1100+3×11,000 2×1,000+9×10+5×1+1×110+3×11,000