Rounding Number Line (opens in a new tab)
Start with 949,999 to the nearest 100,000, then compare 950,000 and 950,001 using the same bounds.
Open the tool (opens in a new tab)Year 5 · Place value · 2:06 · Short worked example
Compare 949,999, 950,000 and 950,001 to explain rounding just below, exactly at and just above halfway.

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Start with 949,999 to the nearest 100,000, then compare 950,000 and 950,001 using the same bounds.
Open the tool (opens in a new tab)Practice / Large numbers. Use these ideas for nearest-100,000 cards; the set also includes nearest 10,000 and 1,000,000. Use Instructions for the game rules.
Open the game (opens in a new tab)Practice / Sort one way / within 1,000,000 / nearest 100,000, with six cards and a balanced case mix. Use Instructions for the sorting rules.
Open the game (opens in a new tab)Teach the concept step by step with the matching classroom lesson.
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