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Math Flash Rounding

Math Flash Rounding. By Monica Yuskaitis. Use rounding. When the question asks you to estimate. When the question asks “about how many”…? When an exact answer isn’t possible. When an answer is difficult to obtain. Memorize this Poem. Find your number. Look right next door.

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Math Flash Rounding

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  1. Math FlashRounding By Monica Yuskaitis

  2. Use rounding • When the question asks you • to estimate. • When the question asks • “about how many”…? • When an exact answer isn’t • possible. • When an answer is difficult to obtain.

  3. Memorize this Poem Find your number. Look right next door. 4 or less just ignore. 5 or more, add 1 more.

  4. Round this number to the nearestten thousand. Find your number. 3 6 8,9 7 1 Circle the number in the ten thousands place.

  5. Round this number to the nearestten thousand. Look right next door. 3 6 8,9 7 1 Draw an arrow to the right of the number.

  6. Round this number to the nearestten thousand. 4 or less, just ignore. 3 6 8,9 7 1 8 is larger than 4 so go to the next line of the poem.

  7. Round this number to the nearestten thousand. 5 or more, add 1 more. +1 3 6 8,9 7 1 Add 1 to the 6.

  8. Round this number to the nearestten thousand. 5 or more, add 1 more. 3 70,0 0 0 Add 1 to the 6 and all the numbers to the right of the 7 become 0’s.

  9. The Answer 368,971 rounded to the nearest ten thousand is 3 7 0,0 0 0

  10. Round this number to the nearestthousand. Find your number. 3 5, 3 2 7 Circle the number in the thousands place.

  11. Round this number to the nearestthousand. Look right next door. 3 5, 3 2 7 Draw an arrow to the right of the number.

  12. Round this number to the nearestthousand. 4 or less, just ignore. 3 5, 3 2 7 Since 3 is less than 4 we do not change the 5.

  13. Round this number to the nearestthousand. 4 or less, just ignore. 3 5, 0 0 0 Change the numbers to left of 5 to 0’s.

  14. The Answer 35,327 rounded to the nearest thousand is 3 5, 0 0 0

  15. Round this number to the nearestdollar. Find your number. $ 5. 87 Circle the number where the dollars are.

  16. Round this number to the nearestdollar. Look right next door. $ 5. 87 Draw an arrow to the right of the circled number.

  17. Round this number to the nearestdollar. 4 or less, just ignore. $ 5. 87 8 is greater than 4 so go to the next line of the poem.

  18. Round this number to the nearestdollar. 5 or more, add 1 more. +1 $ 5. 87 Since 8 is greater than 5 add 1 to the 5.

  19. Round this number to the nearestdollar. 5 or more, add 1 more. $ 6. 0 0 Change the 5 to a 6 and change all the numbers to the right to 0’s.

  20. The Answer $5.87 rounded to the nearest dollar is $ 6. 0 0

  21. Round this number to the nearesttenth place. Find your number. 4. 87 1 Circle the number in the tenths place.

  22. Round this number to the nearesttenth place. Look right next door. 4. 87 1 Draw an arrow to the right of the circled number.

  23. Round this number to the nearesttenth place. 4 or less just ignore. 4. 87 1 8 is greater than 4 so go to the next line of the poem.

  24. Round this number to the nearesttenth place. 5 or more, add 1 more. +1 4. 87 1 Since 7 is greater than 5, add 1 to the 8.

  25. Round this number to the nearesttenth place. 5 or more, add 1 more. 4. 9 Change the 8 to a 9 and drop the numbers to the right of the 9.

  26. The Answer 4.871 rounded to the nearest tenth place is 4. 9

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