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Playlist: Deep Math

Broken Calculator: 2-Digit Subtraction

Broken Calculator: 2-Digit Subtraction

This calculator gets subtraction wrong the same way every time. Can your students crack its broken rule?

Contig

Contig

Roll three dice and combine them using any mathematical operation. But be strategic to maximize your points!

Measurement: An Elephant

Measurement: An Elephant

What if I told you that an elephant weighed a back-breaking 176,000? Could you figure out the unit I’m using? But… how many corgis would that be?

Math Game: Heaps

Math Game: Heaps

Try this a simple (but surprisingly strategic) subtraction game!

Bulls and Cows

Bulls and Cows

How quickly can you break the numeric code?

Calculators, Patterns, and Multiplying By Decimals

Calculators, Patterns, and Multiplying By Decimals

Before teaching students the procedure for multiplying with decimals, how much can they intuitively glean from a structured play session with calculators?

Chomp

Chomp

Chomp away at your opponent in this grid-based strategy game.

Math Curiosity: Twin Primes

Math Curiosity: Twin Primes

What do you call two prime numbers who are very close together?