1、买文具(小数乘整数)题单提出的问题: 列式:计算过程:(1)30.6=( ) (2)0.067=( )0.33 0.28 40.2 30.5 0.44 0.19 0.72 60.2 0.64 学以致用A组:(1)(2) 一个正方形,边长是0.12米,它的周长是多少米?B组:(1)一根绳子共剪了3次,剪下的每段一样长,都是0.8米,这根绳子原来长多少米?(2)一根绳子对折3次后,每段绳长0.8米,这根绳子原来长多少米?C组:妈妈买回一根彩带,第一次用去彩带的一半,第二次用去第一次剩下的一半,第三次用去第二次剩下的一半,还剩0.4米。这根彩带原来长多少米? 检测:0.83 =70.5 =1.42
2、=0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 = 检测:0.83 =70.5 =1.42 =0.710= 0.065 =40.09=0.0115 = 2.1 4 =