Mathematics
+ - x ÷
Algebra
Fractions
Measurement
Geometry
Patterns
Money
Data
Integers
Estimation
Required Plug-ins

Can you Fill It?
Pick the combination of pots that will fill the container with the fewest number of pours.
Comparison Estimator
Compare the length of two lines, the area of two shapes, or the number of objects on each side.
Estimation Contraption
Quickly estimate of what the list of numbers would add up to.
Estimator
How good are your estimation skills?
Required Plug-ins
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