In a number, each place is worth ten times the place to its right and one tenth of the place to its left. Multiplying or dividing by 10, 100 or 1,000 moves every digit one place for each 10.
16 blocks · 5 graded
18 blocks · 6 graded
15 blocks · 5 graded
14 blocks · 5 graded
15 blocks · 6 graded
11 blocks · 2 graded
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