14.12+12.04*99-2.11的简算
问题描述:
14.12+12.04*99-2.11的简算
答
12.04*100-2.11+14.12-12.04
答
14.12+12.04*99-2.11
=12.04+2.08+12.04*99-2.11
=12.04x(1+99)+2.08-2.11
=12.04x100-0.03
=120.4-0.03
=120.37