沪教版二年级上数学知识点
第1页共5页小新星二年级数学知识点整理数学知识点整理一、计算直接写出得数1、百以内加减法(包括进退位):45–945+92、表内乘除法3、有余数除法46÷94、两步计算题:递等式计算57-12–89+27+21=45-8=36+21=37=57(从左往右依次计算;也可先凑整再算,但这种巧算的方法不做要求。)5、2×3×464÷8÷43×6÷2计算顺序:从左往右依次计算6、*6+3×4*19-9×2(两步计算运算顺序:先乘除后加减)列竖式计算1、加减法一步、两步算式(注意数位对齐,不要漏写横式后的得数、不要漏做第二步)25+47=7286-19=6727+45-18=54258627+47-...
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