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Comparing & Ordering Numbers in Standard Form (Year 9)

Free printable UK Year 9 (Key Stage 3) maths worksheet: compare and order numbers written in standard form, and check whether a number follows the 1 <= A < 10 rule.

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Grade 8 · Math worksheet
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Comparing & Ordering Numbers in Standard Form

Compare, order, or check standard-form numbers using the rule that 1 <= A < 10.

  1. 1.
    Which is larger: A = 9.9 x 10510^{5} or B = 6.5 x 10−310^{-3}?
  2. 2.
    Which is larger: A = 5.5 x 10−410^{-4} or B = 6.9 x 10−410^{-4}?
  3. 3.
    Which is larger: A = 7.7 x 10110^{1} or B = 5 x 10010^{0}?
  4. 4.
    Which is larger: A = 9 x 10310^{3} or B = 7.1 x 10110^{1}?
  5. 5.
    Order these numbers from smallest to largest: 9.9 x 10−510^{-5}, 7 x 10010^{0}, 6.2 x 10410^{4}, 1.2 x 10−310^{-3}
  6. 6.
    Order these numbers from smallest to largest: 5.3 x 10−110^{-1}, 1.7 x 10−210^{-2}, 1.1 x 10−410^{-4}, 7.3 x 10−510^{-5}
  7. 7.
    Order these numbers from smallest to largest: 9.8 x 10110^{1}, 7.8 x 10−310^{-3}, 5.3 x 10−310^{-3}, 7.5 x 10−410^{-4}
  8. 8.
    Which of these is NOT correctly written in standard form? 2.2 x 10−410^{-4}, 3.4 x 10510^{5}, 79.8 x 10210^{2}, 3 x 10−410^{-4}
  9. 9.
    Which of these is NOT correctly written in standard form? 4.3 x 10−210^{-2}, 0.4 x 10−410^{-4}, 7.7 x 10−210^{-2}, 7.4 x 10110^{1}
  10. 10.
    Which of these is NOT correctly written in standard form? 7.5 x 10−110^{-1}, 0.1 x 10−510^{-5}, 5.4 x 10−110^{-1}, 2.5 x 10310^{3}
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