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=KzXn0JJTTsI Row is a horizontal stack of cells and labelled by numbers ex row 1, row 2 and so on. Column is a vertical stack of cells and labelled by alphabets Column A, Column B and so on. Shortcut Copy Ctrl C Cut Ctrl X Paste Ctrl V Undo Ctrl Z
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