人教版小学五级数学上册四单元整理和复习.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,整理和复习,马郎小学 陈伟,解方程的原理是什么？要注意什么？,（,1,）等式的两边同时加上或减去相等的数，等式不变。,（,2,）等式的两边同时乘或除以相等的数（,0,除外），等式不变。,12,30,12,42,6,30,5,30,解：,12,12,30,12,解：,12,12,42,12,解：,6,6,306,解：,5,5,305,42,30,5,150,12,30,12,42,6,30,5,30,6,12,42,解：,6,12,12,42,12,6,30,6,6,306,5,6,26,42,解：,6,12,42,6,12,12,42,12,6,30,6,6,306,5,6,（,2,）,42,解：,6,（,2,）,6,426,2,7,2,2,7,2,5,5,30,解：,6,30,6,6,306,5,刚才这些方程可不可以,简化,解方程的过程？,6,12,42,解：,6,+1 2,12,42,12,6,30,6,6,306,5,6,26,42,解：,6,12,42,6,12,12,42,12,6,30,6,6,306,5,6,（,2,）,42,解：,6,（,2,）,6,426,2,7,2,2,7,2,5,5,30,解：,6,30,6,6,306,5,解：,6,42,12,306,6,42,12,306,306,解：,2,426,7,2,解下列方程，可以用你喜欢的方法。,THANK YOU,SUCCESS,2025/7/9 周三,9,可编辑,谢谢大家，望同学们好好学习！,THANK YOU,SUCCESS,2025/7/9 周三,18,可编辑,