LaxmiAcademy

https://www.youtube.com/watch?v=vU5aZVD2lMU

https://www.youtube.com/watch?v=zR4xkNP1-3E

https://www.youtube.com/watch?v=wCln1fzvaDQ Tips for mental addition Start from left Avoid using  words like "plus", and" as that takes time to process. Practice, practice Learn compliments.            

https://www.youtube.com/watch?v=jxJVomBW8tg 25 can be written as 100/4 If you want to multiply any number by 25, Multiply by 100 and divide by 4. Multiplying any number by 100, you just add two zeros towards the end of the number and then divide by 4

https://www.youtube.com/watch?v=rqymPFil-So 5=10/2 If we want to multiply any number by 5 then multiply by 10 and divide by 2. This concept makes multiplication of bigger numbers easier. To multiply any number by 10, you put 0 at the end of the number Ex 23 X 10=230 456 X 10=4560 Then divide by 2. Ex 21 X 5 = 21*10/2 =210/2 =105  

https://www.youtube.com/watch?v=ERie9p_x3aQ

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https://www.youtube.com/watch?v=eF1SYzW6cbc  

https://www.youtube.com/watch?v=8sVKCDHp0ao You write number 1 to 9 in tic toe table and add 1 in front on numbers in the second row and 2 in the third row and you have 3 times table ready.  

https://www.youtube.com/watch?v=iB3x256a8i8

https://www.youtube.com/watch?v=wTsqChrkgn4