Subtract the smaller corner from the larger one and write the difference in the middle circle. Choose any four numbers and write them in the corner circles.
#Simple math puzzles free#
Try this fascinating math trick to amaze your students! Grab the free printable puzzle blank at the link below. Visit the link to learn how they work and find more ideas. The game of dominos is really one big math puzzle all on its own, but there are lots of other cool math tricks you can do with them! You can arrange them in magic squares and rectangles, lay out multiplication problems, set up magic windows, and more.
#Simple math puzzles how to#
Given two loops of paper chain and a pair of scissors, can kids figure out how to change them into a single square? The answer (video walk-through included) is at the link. When they see them visually, kids will learn to identify patterns in their multiplication tables. Practice multiplication facts by creating graph paper designs called spirolaterals. Learn more: Dover Publications (Answer 2) 11. Then, they need to eliminate 2 numbers in each row so the totals (horizontal and vertical) equal 30. They’ll need to add up the numbers in each row and column and figure out by how much the total exceeds 30. Here’s a puzzle that will keep your students busy for quite some time. Learn more: Toothpick Geometry PDF/San Francisco State University 10. For even more fun, ask kids to create their own toothpick math puzzles! The answer is simple once you see it, but it requires kids to make a leap and recognize not all the squares need to be the same size.įind 19 more toothpick puzzles at the link. Ask them to figure out how they can move only two toothpicks to make 6 squares. Pass out a few boxes, then have kids arrange 12 toothpicks as shown to make 4 squares. Toothpick puzzles encourage logical thinking skills and geometry concepts too. Now ask kids if they can figure out how the trick works. Keep a running sum of those numbers, and announce your total at the end. If they say yes, note the number in the top left corner. As you show them each card one by one, you’ll ask them whether their number is on that card. Put the cards in a pile and ask a student to pick any number between 1 and 30, without telling you what it is. Print the free cards at the link and use them for this clever “magic” trick. Switch things up with a crossword made up of numbers and equations instead of letters! Have kids solve this one, then challenge them to make up one of their own. Try this one on your students, then see if they can create their own math pyramids!
The correct answer here is 7-3, which equals 4. In this one, each number is found by subtracting the smaller from the larger of the two numbers underneath. In a number pyramid, numerals are arranged in patterns, and one or more squares are left empty to be filled in with the correct answer(s). Learn more: Calendar Math/Learn With Math Games 6. For instance, say you want to multiply 9 x 17. Simply multiply the number by 10, and subtract the original number. All you have to do multiply the center number by 9-you’ll get the right answer every time!īonus Trick: Multiplying numbers by 9 is easy. Tell them you can find the sum of those 9 numbers faster than they can add it up on a calculator. Pull out a calendar and ask students to put a square around a 3 x 3 box, enclosing 9 numbers. Find out how it works and get lots of free puzzles to try at the link. Each row and column must equal the numbers at the end. The challenge is to fill in the blank squares using the operation indicated in the bottom right corner. Yohaku math puzzles are a new spin on magic squares. Bottlecaps work perfectly for these math puzzles too! This can be a low-key way to ease kids into magic squares, since there aren’t as many lines to contend with. Magic Triangles are just like magic squares, but each side of the perimeter adds up to the same number. Find out how these math puzzles work and get free printables at the link. Now kids can slide them around until they get the right combination.
Tip: To make it easier for kids to work out the solution to magic squares, try writing numerals on bottle caps. For a 3×3 square, each line adds up to 15. Each line of the square (horizontal, vertical, and diagonal) must add up to the same sum, and each box must contain a different number. A magic square is made up of equal rows of numbers (3×3, 4×4, etc.). Magic squares are the basis for the ever-popular Sudoku math puzzles, and they’re fantastic learning tools for kids. Visit the link to learn a cool visual method to walk students through the steps. Tricks like this are lots of fun for getting kids to practice mental math, but they also provide a terrific opportunity for kids to use algebraic thinking to come up with their own puzzles.
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