1分米=0.1米, [(25×10+10×1.6+1.6×25)×2-25×10]÷(0.1×0.1), =[(250+16+40)×2-250]÷0.01, =(306×2-250)÷0.01, =(612-250)÷0.01, =362÷0.01, =36200(块); 答:至少需要这种瓷砖36200块. |
1分米=0.1米, [(25×10+10×1.6+1.6×25)×2-25×10]÷(0.1×0.1), =[(250+16+40)×2-250]÷0.01, =(306×2-250)÷0.01, =(612-250)÷0.01, =362÷0.01, =36200(块); 答:至少需要这种瓷砖36200块. |