12x12x12-12x12x2-10=?给我简算算式!我要的怎么简算!
问题描述:
12x12x12-12x12x2-10=?
给我简算算式!我要的怎么简算!
答
1430
答
12x12x12-12x12x2-10
=12x12x(12-2)-10
=12x12x10-10
=10(12x12x-1)
=10x(144-1)
=10x143
=1430