DrillGrades 3 to 4Grades 5 to 6
Multiplication facts worksheets
Times-table drills: one table, a range of tables, squares or anchor facts, in order or shuffled.
Circle the prime numbers up to 100 worksheets
Look through forty numbers from 2 to 100 and circle every prime number.
What is on this worksheet
Look through forty numbers from 2 to 100 and circle every prime number.
- Numbers from 2 up to: 100
- Problems per page: 40
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 prime and composite numbers
Choose to circle the prime numbers, circle the composite numbers, or tick the right word beside each number. Numbers start at 2, so there is no need to discuss 1.
The solved example lists the factors of one number to show why it is prime or composite. In the answer key every right answer is marked in blue.
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.
More versions
- Circle the prime numbers up to 20 worksheets
- Circle the prime numbers up to 30 worksheets
- Circle the composite numbers up to 30 worksheets
- Circle the composite numbers up to 100 worksheets
- Circle the composite numbers up to 50 worksheets
- Prime or composite sorting to 50 worksheets
- Prime or composite sorting to 100 worksheets
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Multi-digit multiplication with room to show every partial product, from 2 × 1 digits up to 5 × 3.
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The area model: break each number into place values, fill the boxes and add them up.