50以内小数点2位加减法
D
+= 22+= += +=
+= += += +=
+16= += += +=
+= += += +=
+= += +.13= +=
+= += += +=
+= 39+= += +=
+= += += +=
+= += += +=
+= += += +=
+= += += 8+=
+= += += .83+=
+= += += 35+=
+= += += +=
+= += += +=
+= +13= += +=
+= += += .8+=
+= += += +=
+= += += +=
+= += += +=
+= += += +=
+= += += +=
+= += += +=
+.26= 4
50以内小数点2位加减法 来自淘豆网www.taodocs.com转载请标明出处.