Move 2 Matchsticks: Hard Equation Puzzles
A free printable move 2 matchsticks: hard equation puzzles worksheet with an answer key. Hard mode: move exactly 2 matchsticks to make each equation true. There is only one way! Great for 4th grade practice at home or in class.
- Size
- US Letter (8.5 × 11 in), fits A4
- 2 pages: the worksheet and its answer key
- Level
- Grade 4
- License
- Free for personal & classroom use
About this worksheet
A free printable move 2 matchsticks: hard equation puzzles worksheet with an answer key. Hard mode: move exactly 2 matchsticks to make each equation true. There is only one way! It is built for fourth grade, around ages 9 to 10.
Answer key at a glance
1) New equation: 19 - 4 = 15; 2) New equation: 10 - 3 = 7; 3) New equation: 7 - 1 = 6; 4) New equation: 19 - 1 = 18; 5) New equation: 17 - 2 = 15; 6) New equation: 4 - 4 = 0.
Tips for using it
- Read the equation out loud first and say what is wrong with it, like 'six plus two is not five'.
- Look at which digits can change with one stick: a 6 can become a 5, 8 or 9, and a minus can become a plus.
- Build the puzzle with toothpicks and test each idea with your hands before drawing the answer.
Printing tips
Download the PDF and print at 100% (or “fit to page” on A4). Page 1 is the worksheet and page 2 is the answer key with the answers in red; print just page 1 if you want to keep the answers for checking. The PNG shows page 1 only. Free for personal, family and classroom use.
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