Multiplying and dividing by 10,100,1000

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Learning objective overview

Master Teaching Guide coverage for this objective.

Multiply a whole number or decimal by 10, 100, or 1000 by shifting the digits according to place value.
Divide a whole number or decimal by 10, 100, or 1000 by shifting the digits according to place value.
Check whether a claimed multiplication or division by a power of ten is correct.
Find the missing number or missing multiplier/divisor in an equation involving a power of ten.
Apply multiplying and dividing by 10, 100, and 1000 to convert between metric units.

Multiplying by 10, 100 or 1000 shifts the decimal point right by 1, 2 or 3 places; dividing shifts it left by the same number of places -- the digits themselves don't move, the decimal point does.