DrillGrades 1 to 2Grades 3 to 4
Missing number worksheets
Equations with one empty box, for addition, subtraction, multiplication, division or a mix.
Small-number Pythagorean triple search puzzles
Find eight hidden triples in a 10×10 grid where the squares of two numbers add up to the square of the third, with numbers up to 30.
What is on this worksheet
Find eight hidden triples in a 10×10 grid where the squares of two numbers add up to the square of the third, with numbers up to 30.
- Largest number up to: 30
- Grid size: 10×10
- Hidden triples: 8
You can change any of these settings above. Press "New problems" for a fresh set with the same settings, or pick Version A to Z to print different sheets for neighboring desks. The answer key always matches.
About pythagorean triple search
The hidden items are Pythagorean triples written as three numbers in a row, such as 5, 12, 13 or 13, 5, 12, running across or down. Students test whether the squares of two of the numbers add up to the square of the third.
The grid hides exactly the triples the answer key lists and no accidental extras. Choose the largest number, the grid size and how many triples to find.
Printing
US Letter or A4, portrait: choose your paper size above. Print at 100 percent (actual size). Use "Black and white" for the copier, or "Color" for display pages and mini books.
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