Math problem-solving methods in the second grade of primary school

Adopt painting method

Xiaoqing:-|.

Xiaoyang:-|.

Add 20 books of Xiaoyang to Xiaoqing's online, and we can see that Xiaoyang has 20*2=40 more books than Xiaoqing. If you subtract these 40 books, the number of Xiaoqing and Xiaoyang will be the same, so Xiaoqing =( 120-40) divided by 2=80/2=40, and Xiaoyang =/kloc-0.

Gifts excellent composition

Is Euler's junior high school mathematics reliable?

Introduce Chen Shengshen.

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Bashang mathematical formula

In 2009, the recruitment guide of primary and secondary school teachers in Yuelu District of Changsha City.

Which remedial class is better for the third grade?

Fibonacci series, Cartland series, Hanoi tower series

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What are the knowledge points of mathematics in the next semester?