Addition involves finding the total of two or more numbers or amounts. There are different things you can use to help you add. You can use number lines, place value charts and place value counters.
When you divide a decimal by 10, 100 or 1,000, the place value of the digits decreases. The number decreases in value by 10, 100 or 1,000 times. The digits move to the right as the number gets smaller ...
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