standard_description: Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.
problem_activity: Problem 1
Solve.
a.
$$128,000 \div 100 =$$
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b.
$$67,000 \div 10^3 =$$
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Problem 2
Explain the pattern in the number of places the digits shift in each of the quotients above and relate it to the numbers on the left side of the equations.


aligns: no