SamizdatMath

Nadia Geddit wanted to get into her building, but she forgot the code to the lock. However, she did remember some clues about the code. These are 5 clues about the code: 1) The sum of the fifth digit and the third digit is 14. 2) The fourth digit is one more than the second digit. 3) The first digit is one less than twice the second digit. 4) The sum of the second and third digit is 10. 5) The sum of all five digits is 30. What 5 digits must Nadia press to make the lock open? How wo

Winning Touch is a partner activity where students use tiles to fill in the products on a multiplication board. Each student starts with 4 tiles, and then a "shared" tile is chosen to be placed on the board to begin the game. Each student takes turns finding a combination of factors that will allow a tile to be placed on the board (for example, if the student has a tile marked "18", s/he can play it on 9 and 2, 2 and 9, 3 and 6, or 6 and 3. However, the tile must touch another tile that is alrea

Yes, you saw it with rats, turkeys and reindeers; fact it, you're eventually going to buy one of these, so why not snowmen and snowballs? NO JOKES PLEASE! Okay, the concept is simple: take the snowballs numbered from 1 - 6 and arrange them on the three sides so that each side adds up to 9. Rearrange them and they add up to 10. Do it again, and they add up to 11. Then do it one more time and they add up to 12. Record your results and see for the patterns that emerge in the corner numbers. Want

10 Christmas Pattern Puzzles, from the very easy to the very hard. Students cut out "stamps" at the bottom of the page and place them in the missing space. Watch out: there are more stamps than there are places to put them. And, at a fellow TpT member's suggestion, includes answer key!