Decimal Power

 

Square in the square

 

Source: Brilliant

 

Solve for Love

 

This amazing puzzle brought a lot of excitement to my math class.

source: Brilliant

 

Problem Solving

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Forming Equations - Bingo

When a number is increased by 5, the answer is 7. 

 

When a number is decreased by 3, the answer is -1.

 

When a number is increased by 5 and the resulting number is doubled, the answer is 33.

 

A number is doubled and three is added. The result is 7. 

 

Twice a number is 3 less than the number. 

 

Four times a number is equal to 35 minus the number. 

 

3 added to the square of a number is 7. 

 

Two consecutive numbers are added and the answer is 21. 

 

Two consecutive even numbers are added and the answer is 14. 

 

Three more than a number is two.

A number subtracted from seven is equal to three more than that number.

 

 

Multi-step Equation Challenge

Using the digits 1 to 9, at most one time each, create an equation where x has the smallest (or greatest) possible value. 

Source: Open Middle

A Surprising Matchstick Puzzle

 

By moving just one matchstick, how can you make the left side of the equation as close as possible in value to the right side of the equation? As always, you can’t turn the equals sign into an inequality sign?

Resource: Puzzle A Day