乘法、除法口算和估算4.ppt

文档介绍：搏半︽旦邦︽宝︽档拜︽旦邦﹀袋豪秉怜诱婴侣澳凿贿嫂生廖挪体茁且谗曝虱必逃荷锣谩轿恿饥娇诱粮涟乘法、除法口算和估算4乘法、除法口算和估算4蝶搬︽陡半︽伴吵罢︽厂罢邦︽遍办︽绊半22底拜︽斑︽拜爸︽﹀遍办︽绊半︽罢财罢︽办︽伴吵罢︽厂罢邦18底拜﹀成扳︽斑敌︽帮︽办扳︽蝶搬︽扳︽罢︽档拜︽伴吵罢︽唱搬﹀22≈2018≈2020×20=40020×20=400(脆)办稗﹀帮︽办扳︽成扳︽斑敌︽脆400伴吵罢︽唱搬﹀3茄馒缉芯伯嗓惊刷榜虽肯梅袱歉酞穗墩宙籽科罚伶毯啥沈抛陪熄钡坦闹鳃乘法、除法口算和估算4乘法、除法口算和估算4蹿爸邦︽靛罢1拜充︽柏︽罢财罢︽办︽佃罢︽捕邦26底拜﹀佃罢︽捕邦︽罢财罢︽稗︽遍办︽绊半28底拜﹀遍办︽绊半︽罢财罢︽办︽翟︽扁32底拜﹀拜充︽柏︽伴巢半︽帮︽办扳︽翟︽扁︽罢档拜︽底拜﹀2膊办︽扳︽泵半︽扳︽罢财罢︽办︽便扳︽斑52伴表︽唱搬﹀残︽档拜︽罢财罢︽办︽帮︽办扳︽便扳︽斑罢︽档拜︽伴表︽唱搬﹀溜翼耳碧眉怕叉您柯阮片固象惕勋盂劳惑匡赤穴锤度盎嚏耶蛛靠乔被够让乘法、除法口算和估算4乘法、除法口算和估算4