Compare Three-Digit Numbers from the Left

Supplied materials

• Paper and a pencil; drawing and spoken explanations are welcome. An adult may read directions and options aloud.
• Supplied worked-case record: Compare 472 and 459.
• All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.

Learn the idea

Hundreds decide first when comparing three-digit numbers. If the hundreds match, compare tens; only when tens also match do ones decide. A large ones digit cannot outweigh a larger hundreds place because the positions represent different-sized units.

Align both numerals in a place-value chart. Find the first unequal digit from the left and compare its place values. Use that result to name the greater number and explain which place decided.

Align matching places before comparing. Do not choose a number only because its ones digit is larger. Underline the first place from the left where the numerals differ.

1. Underline the first place from the left where the numerals differ.
2. Follow the worked example. Point to each number or shape feature and say what it tells you.
3. Align both numerals in a place-value chart.
4. Try the question and then the three practice questions. Check your answers and explain any change you make.

Check your reasoning

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Take it further

Compare 608 and 680. Expected: 680 is greater because of its tens place.

Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.