第五单元 倍的认识-2019-2020学年三年级上册数学【优化探究】人教新课标(2014秋)

第1课时　倍的认识 　8×7＝　　24÷3＝　　9×3＝　　56÷7＝ 9×6＝ 64÷8＝ 45÷9＝ 6×4＝ 15÷3＝ 7×5＝ 1．我能准确填空。 (1) INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT 　　　　　　3个 INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT 3个3 我们就说的个数是的(　　)倍 (2) INCLUDEPICTURE "A3.TIF" \* MERGEFORMAT INCLUDEPICTURE "A3.TIF" \* MERGEFORMAT INCLUDEPICTURE "A3.TIF" \* MERGEFORMAT 4张 INCLUDEPICTURE "A4.TIF" \* MERGEFORMAT INCLUDEPICTURE "A4.TIF" \* MERGEFORMAT INCLUDEPICTURE "A4.TIF" \* MERGEFORMAT INCLUDEPICTURE "A4.TIF" \* MERGEFORMAT INCLUDEPICTURE "A4.TIF" \* MERGEFORMAT INCLUDEPICTURE "A4.TIF" \* MERGEFORMAT (　　)个4 我们就说的个数是的(　　)倍。 (3) INCLUDEPICTURE "A5.TIF" \* MERGEFORMAT (　　)面 INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT 　(　　)个(　　) 我们就说的个数是的(　　)倍。 2．摆一摆，填一填。 　　 第一行： 第二行：第一行的4倍。 3．数一数，填一填。 INCLUDEPICTURE "96BB.TIF" \* MERGEFORMAT INCLUDEPICTURE "96BB.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT 　 INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A2.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT 　 INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT 　 INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT INCLUDEPICTURE "A1.TIF" \* MERGEFORMAT 的个数是的(　　)倍，的个数是的(　　)倍，的个数是的(　　)倍。[来源:Z。xx。k.Com] 4．涂一涂 (1)○是●的2倍 ○○○○○○○○○○○○ (2)○是●的5倍。 ○○○○○○○○○○○○ ○○○○○○○○○○○○ 5．从第二行中移(　　)只到第一行，第一行的个数就是第二行的3倍。[来源:学|科|网] 6. 铅笔长度是橡皮的(　　)倍。 7．红彩带的长度是黄彩带的几倍？ 如果是的6倍，那么下面算式中正确的是(　　) A.＋6＝　　　　　B.×6＝ C.＋6＝ D.×6＝ 第2课时　求一个数是另一个数的几倍 　12÷2＝　　　24÷3＝