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Published byDeborah Copeland Modified over 7 years ago

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Rounding&MathLine Rounding

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Rounding is also referred to as estimating Rounding

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MathLine offers a very effective way to build a concrete picture of rounding Rounding Rounding is challenging for many students while connecting tactile objects to abstract numbers.

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Round 67 to the nearest 10 Rounding

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Either round down to 60 60 70 67 or round up to 70

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Rounding 60 There are 3 questions to determine which ten is correct. 67 70

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Rounding 60 67 1) To which ten is 67 closer? 70 Is 67 closer to 70?

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Rounding 60 67 or is 67 closer to 60? 70

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Rounding 60 67 67 is closer to 70! 70

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Rounding 60 2)How many rings is 67 away from 70? 67 70 3

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Rounding 60 7 2)How many rings is 67 away from 60? 67 70 3

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Rounding 60 7 67 is only 3 rings away from 70, but 7 rings away from 60 67 70 3

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Rounding 60 The blue ring is the middle between 60 and 70. 67 70 3) What side of the blue ring does 67 appear?

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Rounding 60 High side 67 70

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Rounding 60 Or Low side 67 70

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Rounding 60 67 is on the high side 67 70

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Rounding 60 67 …round to 70 Therefore when rounding 67 to the nearest 10… 70

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