MathPickle Puzzles organized by grade… click here to organize by grade AllAdditionAlgebraCartesianCountingData & ProbabilityDivision & DecimalsExponentsFractionsLogicMagicManipulativesMeasurementMultiplicationNegative IntegersNon-Commercial GamesPrimes & CompositesPythagorasSequenceShape & SymmetrySortingSubtractionUnsolved Rooting for NASA (Cartesian, Pythagoras, Algorithm) Treefolk Tribes (symmetry, sorting, sequence) Destroying Democracy! (counting, fractions, shapes) Pin Board Murders (patterns, angles, discussion) Number One! (fractions, primes) Speed Guess Fractions (estimate, division) Packing Pasta (estimate, measure, volume) Lazy Toads on a Star (algebra, symmetry, algorithm) Lazy Toad Puzzles (counting, symmetry) Twisted Homes (rotational symmetry, patterns) House of Mirrors (symmetry, patterns, composite numbers) Picasso’s Line Puzzles (patterns, multiplication, division) Blotch (counting, addition, subtraction) 12 Days (addition, logic, factoring) Streets and Sidewalks (addition, subtraction, pattern) McGuire the Gathering (Multiplication, Patterns, Proof) Hare vs. Hare (patterns, algorithm) Tortoise and Hare – The Revenge Race (skip counting, pattern) Primitive Lightning (composite divisors) Spectral Blaster Hit (symmetry, patterns) Spectral Blaster (symmetry, mini mathematical universe) Tetracide (percentages, algorithm) Square Sardine Packing (percentages, algorithm) Jumping Frogs (patterns, counting, primes) Pollinator Puzzles (multiplication, division) Aesop’s Urns (counting, division by 2, algebra, algorithm) Skinny Man Tango (area, algorithm) Venn Puzzler Square Dance (patterns) Uncracked 33 (negative integers, exponents) The Broken Sword (addition, division, mini-mathematical universe) Virtuous Democracy (addition, constraints & conjectures) Hex (strategy game) Puppet Puzzle (counting, logic, proof) The Josephus Problem (proof, exponents, algorithm) Celtic Counting (counting, proof) Taipei 101 Foundations (multiplication, proof) Three Color Equilateral Triangle Integral Centrifuge II (multiplication of negatives) Integral Centrifuge (multiplication of +/-1) Spider Walk (probability) Armenian Rug Puzzles (logic) Kono – conjecture making with a Korean Game Ninja Bed Bugs (multiplication) Solidarity – Poland, 1981 (addition, logic) Graphene Trampoline (logic & probability) Infinite Go Picasso’s Cuboids (volume puzzle) Uncut Spaghetti (number patterns, algorithm) Raindrops Down Windshield (number order, algorithm) Pinocchio’s Playmates (pattern puzzle) Tree Kangaroo Hopscotch (skip counting) Siteswap (juggling number patterns) ConHex (strategy game) Finding a Tough Mountain (ordering numbers) A little bit of Aggression (addition, subtraction) Portuguese Man o’ War (addition, scientific method) Mean, Median, Mode (unique integer challenge) Irreptiles (proportion, similar shapes) Cardboard Snowflakes (calculating average) Teach counting 0-999 Cartouche Puzzles (arithmetic) Fractal Multiplication Pillage and Profit (algebra) Banyan Tree Root Puzzle (Addition) No three minarets in a line (mirror and rotational symmetry) Plastic Fraction Circles Round Tower – (drill and kill multiplication) Rock – Low unique number game Embryo Morphogenesis (pattern discovery) Rock Monster Turing Machine (computer) Zome – geometric construction Chomp – Cartesian game Hunting Submarines (vectors) 10 Points, 5 Lines, 4 Points on each Line Parallel Lines and Slopes 64 = 65 Mathemagical Proof Taxi Cab Squares Scientific Notation Notrivia Rainbow Squares Minotaur Gores Pythagoras Three Exponential Explorations Using Least 1s Full Integer Collatz Parable of the Polygons Pirates & Cutthroats – algebra Algebra Exercises Number Guessing Game – algebra Squares Built of Right Triangles Algebra on Rectangles Wrongifying Operators Fractions = Decimals using Algebra Symbiotic Sets – addition and division EKG Sequences – factorization Wormhole! 1-100 Composite Connector Challenge Gozen – factorization game Killer Bunny Sequence – prime factorization Which came first: Chicken or Egg Mimizu – common factor puzzles Prime Number Catacombs Intro to Primes & Composites Locker Room Prank Klingon Attack Prime Time GCF Bingo Integral Fission Egyptian Fractions Divisibility Tricks Dressed Up (Equivalent) Fractions Fractured Fractions – equivalent Full Glass – multiplying fractions Unfair Thrones Half Fraction Snake Ballast – multiplication puzzles Lazy Lemur Puzzles Toothpick, Vampire and Domino Sequences Multiplicative Persistence Mondrian Art Puzzles (multiplication, algebra) Beetle Blitz! Daedalus and Icarus try to Escape Sum or Difference – Mutant Fibonacci Bunny Recamán’s Sequence Subtraction Magic with 3 Digits Animal Subtraction Squaring the Square Addition Boomerang Cookie Monster Problem Too Many Mice! Cannibal Fish Earth Attack – addition puzzle Termite Terrorists (addition, patterns) Ballast – addition puzzles Bubbling Cauldrons (single digit addition) Place Value Venus Flytrap – dangerous decimals Building Skyscrapers of Different Heights Speed Counting to Infinity Magic 6 and 9 Number Icicles Intro to Skip Counting Willie Wiggle Wiggle Worm Complete the Quadrilateral Circus Tent Puzzle Symmetry Search Area and Perimeter of Polyanimals Kajitsu – symmetry puzzles Sports Tournaments Life expectancy in different countries Bracket – Number Trivia Game Historic Maps Russian Map Reading Cracking the ADFGX Cipher Dot to Dot Middle Path Puzzles Constellations Round-off Dragon Dot to Dot Precise Measurement Puzzles Half Area Quadrilateral Babylonian Spiral Arrows Ruffian Ritual Kobon Triangles Unifix Cubes Venn Diagram Puzzles Find the Attribute My Pet Zebra Name Connector No Three in a Line Zome Space Chips Please use MathPickle in your classrooms. If you have improvements to make, please contact me. I'll give you credit and kudos 😉 FollowFollowFollow Gordon Hamilton (MMath, PhD)