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Free Hard Worksheets
Free worksheets, coloring pages, mazes, word searches, dot-to-dots, tracing and cut-and-sort sheets for every grade from Preschool to Grade 12, at easy, medium and hard levels. Every one is a free PDF on US Letter or A4, with a low-ink option. Answer keys are separate pages for grown-ups.
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- Letter or A4
- Low-ink option
- Answer keys for grown-ups
446 printables · showing 409–432
Sudoku 9 by 9: two tricky puzzles
Logic & Puzzles · 11–12 · Logic · 1 page
Sustainable development match-up
Geography · Grade 11 · Worksheet · 1 page
Systems of equations: stretch
Mathematics · Grade 11 · Worksheet · 2 pages
The numbers that argued back: stretch
English · 11–12 · Reading · 3 pages
The world wars timeline: write the dates
History, Civics & Social Studies · Grade 11 · Worksheet · 1 page
Trace the functions: what is returned? (stretch)
Coding · Grade 11 · Worksheet · 1 page
Trigonometric ratios: stretch
Mathematics · Grade 11 · Worksheet · 1 page
Web development crossword
Coding · Grade 11 · Puzzle · 1 page
Who brought which snack? A 5-friend logic grid: stretch
Logic & Puzzles · Grade 11 · Logic · 1 page
Arithmetic and geometric sequences: stretch
Mathematics · Grade 12 · Worksheet · 2 pages
Big-print sudoku 9 by 9: tricky puzzles
Logic & Puzzles · Grade 12 · Logic · 2 pages
Biochemistry: fill in the blanks
Science · Grade 12 · Reading · 1 page
Caesar cipher: algorithm efficiency
Coding · Grade 12 · Puzzle · 1 page
Decolonization timeline: what happened when?
History, Civics & Social Studies · Grade 12 · Worksheet · 1 page
Encryption word scramble with a secret word
Computers & Digital Literacy · Grade 12 · Puzzle · 1 page
Encryption: fill in the blanks
Computers & Digital Literacy · Grade 12 · Reading · 1 page
Ethics of AI word search: 14 words
Computers & Digital Literacy · Grade 12 · Puzzle · 1 page
French idioms match-up
World Languages · Grade 12 · Worksheet · 1 page
Globalization and trade: words and meanings
Geography · Grade 12 · Worksheet · 1 page
Graphic design and type match-up
Creative Arts · Grade 12 · Worksheet · 1 page
Graphic design and type: fill in the blanks
Creative Arts · Grade 12 · Reading · 1 page
High water: stretch
English · Grade 12 · Reading · 3 pages
Human physiology word search: 16 words
Science · Grade 12 · Puzzle · 1 page
Logarithms: stretch
Mathematics · Grade 12 · Worksheet · 1 page
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