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Someone is about to run out of laundry detergent which means sticky clothes! Help her estimate how much she has left.

Least common multiple

This least common multiple example gives us 3 numbers from which to find the lcm. This is a challenge, but fun. Do it with us!

Here's a nifty word problem in which we find the dimensions of a garden given only the perimeter. Let's create an equation to solve!

Learn some rules of thumb for multiplying positive and negative numbers.