简算题 18/5÷2.4-2.25×2
问题描述:
简算题 18/5÷2.4-2.25×2
答
=18/5×5/12-9/2
=3/2-9/2
=-3
简算题 18/5÷2.4-2.25×2
=18/5×5/12-9/2
=3/2-9/2
=-3