One tip to break 80? GOLF Top 100 Lifetime Achievement Teacher Pia Nilsson believes in "an uncomplicated thing." The post 1 ...
21 × 1 = 21 When you multiply by 10, move all the digits one place to the left, putting a zero in the empty space. 21 × 10 = 210 When you multiply by 100, move all the digits two places to the ...