Number Puzzles
| Number puzzles are a challenging collection of puzzles in which you have to make all of the numbers within the given range (e.g. 0 through 9) by using only certain integers (e.g. 2,4,6 and 8) and basic arithmetic operations (+, -, and /) along with any combination of parenthesis. The range of numbers is typically 0 through 9 but may be different for some of the puzzles. The constraints on the numbers may be: using only 1,2 and 3 (Easy as 1-2-3) ; using only even integers (Even’s Only); using 5 five times (Five 5’s); to name a few. These puzzles are GREAT practice for order of operations as well as basic number sense. Remember, these can be challenging for younger students but the reward is worth it! |
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| Easy as 1-2-3 |
use only the numbers 1,2 and 3 once and only once to make the numbers 0-9 |
| Even’s Only |
use only the even numbers 2,4,6 and 8 once and only once to make the numbers 0-9 |
| Odd’s Only |
use only the even numbers 3,5,7 and 9 once and only once to make the numbers 0-9 |
| Five 5’s |
use only the number 5 exactly five times to make the numbers 0-9 |
| Primes’s Only |
use only the prime numbers 2,3,5 and 7 once and only once to make the numbers 0-9 |