How to learn math?

I am not good at math，how can I do? or:I am not good at math\uff0chow can I do?or:depends on what grade your in [easy math] 9+19 start on 19 and count

I am not good at math，how can I do?

or:I am not good at math\uff0chow can I do?

or:depends on what grade your in [easy math] 9+19 start on 19 and count up to 9 like this19 20 21 22 23 24 25 26 27 28 so and so if its 3x4 will just 4 + its self is 8and do it 3 times 3x4 =4 8 12= 12

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