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Rounding Numbers to the nearest 10 Next
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Rounding numbers means to get close to the exact number. It’s used when we estimate. Next
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Rounding to the nearest 10 20 21 22 23 24 25 26 27 28 29 30 These numbers round down to 20 because they are closer. Next
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Rounding to the nearest 10 20 21 22 23 24 25 26 27 28 29 30 These numbers round up to 30 because they are closer. Next
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Rounding Poem Find your place Look next door 4 or less… Just ignore. 5 or greater Add one more Next Click to hear poem
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Let’s round 39 to the nearest 10 Next
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Underline the place that you want to round to… the tens place. 3939 Next
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3939 Look next door … To the ones place. Next
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3939 Circle the digit to the right… The ones place. Next
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3939 If the circled digit is a 1, 2, 3, 4 … The underlined digit stays the same. Next
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3939 If the circled digit is a 5, 6, 7, 8, 9 … Add one to the underlined digit. Next
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39 becomes 40 Add one to the underlined digit…. The circled digit becomes 0. Next
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This makes sense because 39 is much closer to 40. 30 31 32 33 34 35 36 37 38 39 40 Next
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Take another look… Let’s round 52 to the nearest ten. Next
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Underline the digit in the tens place. 5252 Next
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5252 Look next door... Next
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5252 Circle the ones digit. Next
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5252 Is it a 1, 2, 3, 4 ? Next
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52 becomes 50 Yes! The underlined digit stays the same and the circled digit becomes a 0. Next
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This makes sense because 52 is much closer to 50. 50 51 52 53 54 55 56 57 58 59 60 Next
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Take another look… Let’s round 75 to the nearest ten. Next
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Underline the digit in the tens place. 7575 Next
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7575 Look next door... Next
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7575 Circle the ones digit. Next
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7575 Is it a 1, 2, 3, 4 ? No! Next
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7575 Is it a 5, 6, 7, 8, 9 ? YES! Next
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75 becomes 80 The add one to the underlined digit and the circled digit becomes a 0. Next
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This makes sense because 75 is closer to 80. 70 71 72 73 74 75 76 77 78 79 80 Next
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Ready to give it a try? Remember the poem if you get stuck. Good luck! Next
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Round 37 to the nearest 10. Next
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37 3040
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Oops! Remember the rule… Next Click to hear poem
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3737 If the circled digit is 5, 6, 7, 8, 9… Add one to the underlined digit Next
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37 would be closer to 40. 30 31 32 33 34 35 36 37 38 39 40 Next
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Let’s try that again! Go
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Yes! Well done! Next
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3737 The circled digit is 5, 6, 7, 8, 9… Add one to the underlined digit Next
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37 would be closer to 40. 30 31 32 33 34 35 36 37 38 39 40 Next
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Try another! Next
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Round 83 to the nearest 10. Next
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83 8090
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Oops! Remember the rule… Next Click to hear poem
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8383 If the circled digit is 1, 2, 3, 4… The underlined digit stays the same. Next
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83 would be closer to 80. 80 81 82 83 84 85 86 87 88 89 90 Next
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Let’s try that again! Go
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Yes! Well done! Next
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8383 The circled digit is 1, 2, 3, 4… The underlined digit stays the same. Next
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83 would be closer to 80. 80 81 82 83 84 85 86 87 88 89 90 Next
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Great job! Now try a few on your own. Next
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Round the following numbers to the nearest 10 on paper. When you are done, bring the paper to me. Good Luck! Next
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Round 38 to the nearest 10. Next
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Round 52 to the nearest 10. Next
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Round 89 to the nearest 10. Next
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Round 74 to the nearest 10. Next
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Round 38 to the nearest 10. Next
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Round 66 to the nearest 10. Next
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Round 15 to the nearest 10. Next
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You are done! Thank you for your hard work. Please remember to bring your paper to me.
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