(小明刚满12周岁。用法:成人:1袋/次,一日3次。儿童:袋/次,一日3次)
列式:
1.5÷0.05= 8÷0.001= 2.2+8= 31.9-3.09= 3×4÷3×4=
× = 5- + = × = 0.12= 1÷ - ÷1=