Comparing and Ordering Numbers
We learn to compare two-digit numbers to see which is greater or smaller, and arrange several numbers in order.
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To compare two-digit numbers, we first look at the tens digit - the number with the bigger tens digit is greater. If the tens digits are the same, we compare the ones digit.
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- Compare tens digits first when comparing two-digit numbers.
- If tens digits are equal, compare ones digits.
- 56 is greater than 34 because 5 tens is more than 3 tens.
- '>' means greater than, '<' means less than, '=' means equal.
- Ordering means arranging numbers smallest to largest or reverse.
- We compare numbers pair by pair to order them.
- The tens digit matters more than the ones digit.
- 42 and 45 have the same tens but different ones digits.