Use the number 5 exactly five times along with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 10

5 * 5 - 5 - 5 - 5

Just enter your solutions in the boxes below and select Check! Good Luck!

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Use the number 4 exactly four times along with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 9

4 + 4 + 4 / 4

Just enter your solutions in the boxes below and select Check! Good Luck!

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Use the numbers 1, 2 and 3 exactly one time each along with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 9.

For example, here is one way to make the number 9

(1 + 2) * 3

Just enter your solutions in the boxes below and select Check! Good Luck!

1 =
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Use the even numbers 2, 4, 6 and 8 exactly one time each with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 10

2 + 6 + 8 - 4

Just enter your solutions in the boxes below and select Check! Good Luck!

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Use the odd numbers 1, 3, 5 and 7 exactly one time each with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 10

7 + 5 + 1 - 3

Just enter your solutions in the boxes below and select Check! Good Luck!

1 =
2 =
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Use the odd numbers 2, 3, 5 and 7 exactly one time each with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 10

7 + 5 + 1 - 3

Just enter your solutions in the boxes below and select Check! Good Luck!

1 =
2 =
3 =
4 =
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10 =

Use the Fibonacci numbers 2, 3, 5 and 8 exactly one time each with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 10

8 + 5 + 1 - 3

Just enter your solutions in the boxes below and select Check! Good Luck!

1 =
2 =
3 =
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10 =

Use the Powers of 2 - 1, 2, 4 and 8 exactly one time each with any combination of the arithmetic operators + - * / and at most one set of parenthesis ( ) to make each number 1 through 10.

For example, here is one way to make the number 10

8 + 4 - 2 * 1

Just enter your solutions in the boxes below and select Check! Good Luck!

1 =
2 =
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10 =

The solutions to the puzzles are not available. However, each solution can be checked for correctness. If a solution is incorrect, a helpful reason why is provided.

The best thing to do is to find somebody else and discuss it with them.

Good Luck!

Easy as 1,2,3 puzzles are great number sense puzzles! Each puzzles consists of mulitple problems in which you have to make a number (using 1,2,3, ..., 10) using given numbers and the basic operators +,-,* and \ (addition, subtraction, multiplication and division) In addition, you can use one set of parenthesis (but you don't have to.

For example, can you make the number 9 by combining 2,4,6 and 8? Sure, it's

9 = (4 + 8 + 6) / 2 or maybe

9 = 8 + (6 - 4) / 2

both are valid solutions. There are 12 different puzzles in all

For each puzzle there will be a PDF file that can be easily printed and posted.

Good Luck and Please Share!

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Easy as 1,2,3 puzzles are great number sense puzzles!
Each puzzles consists of mulitple problems in which you have to make a number (usually 1,2,3, ..., 10) using given numbers (like 1,2 and 3) and the basic operators +, -, * and \ (addition, subtraction, multiplication and division) and at most one set of parenthesis!

For example, here's the number 10 using the numbers 1,2,3 and 4.

10 = 4 * 3 - 2 * 1