Whole Numbers, Integers, and Rational Numbers
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Whole Numbers, Integers, and Rational Numbers
Classifying numbers worksheet: twelve numbers such as −18/6, 0.25 and √7 to mark as whole numbers, integers or rational numbers. Grades 6 to 8, with an answer key.
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- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Tell rational numbers from irrational ones, write a repeating decimal as a fraction, and use whole-number and decimal estimates to compare and place irrational numbers such as √20 and π on a number line.
Reviewed by Mr. Daniel Carter, Teacher and Mr. Robert Harrison, Teacher. How we check worksheets
How to use this sheet
- Keep a list of the perfect squares to 144 and the perfect cubes to 125 beside the sheet.
- For estimating, have the child find the two perfect squares the number is between first.
- Ask the child to check each root by multiplying it back.
Common mistakes
- Dividing by 2 for a square root, so the square root of 16 becomes 8. Ask which number times itself makes 16.
- Thinking every square root is irrational. The square root of 49 is 7, a whole number.
- Thinking a repeating decimal is irrational. Repeating decimals are fractions, so they are rational.
