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Ordering and comparing whole numbers

Number • Structure and calculation

Key concepts

What you'll likely be quizzed about

  • Place value determines the value of a digit based on its position in a number.
  • For example, in the number 453, the '4' represents four hundreds, the '5' represents five tens, and the '3' represents three units.
  • Understanding place value is crucial for comparing and ordering numbers accurately.
  • When comparing two numbers, one can observe the digits from left to right, starting with the most significant digit.
  • The first differing digit indicates which number is larger.
  • For instance, when comparing 247 and 275, focus on the hundreds; 2 in both, then see the tens where '4' is less than '7', making 247 smaller.

Flashcards

Test your knowledge with interactive flashcards

Which is larger: 432 or 423?

Click to reveal answer

432 is larger because the hundreds digit '4' is the same and '3' is greater than '2' in the tens place.

Key notes

Important points to keep in mind

Focus on the leftmost digit first when comparing.

Arrange numbers by comparing the highest place value.

Digits in higher places hold more value than lower places.

Always start comparisons from the left.

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