Rounding

Rounding - Math Flash Math Flash Rounding By Monica...

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Unformatted text preview: Math Flash Math Flash Rounding By Monica Yuskaitis Use rounding 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 Memorize this Poem Find your number. Look right next door. 4 or less just ignore. 5 or more, add 1 more. Round this number to the nearest Round this number to the nearest ten thousand. Find your number. 3 6 8,9 7 1 Circle the number in the ten thousands place. Round this number to the nearest Round this number to the nearest ten thousand. Look right next door. 3 6 8,9 7 1 Draw an arrow to the right of the number. Round this number to the nearest Round this number to the nearest ten 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. Round this number to the nearest Round this number to the nearest ten thousand. 5 or more, add 1 more. +1 3 6 8,9 7 1 Add 1 to the 6. Round this number to the nearest Round this number to the nearest ten thousand. 5 or more, add 1 more. 3 7 0,0 0 0 Add 1 to the 6 and all the numbers to the right of the 7 become 0’s. The Answer The Answer 368,971 rounded to the nearest ten thousand is 3 7 0,0 0 0 Round this number to the nearest Round this number to the nearest thousand. Find your number. 3 5, 3 2 7 Circle the number in the thousands place. Round this number to the nearest Round this number to the nearest thousand. Look right next door. 3 5, 3 2 7 Draw an arrow to the right of the number. Round this number to the nearest Round this number to the nearest thousand. 4 or less, just ignore. 3 5, 3 2 7 Since 3 is less than 4 we do not change the 5. Round this number to the nearest Round this number to the nearest thousand. 4 or less, just ignore. 3 5, 0 0 0 Change the numbers to left of 5 to 0’s. The Answer The Answer 35,327 rounded to the nearest thousand is 3 5, 0 0 0 Round this number to the nearest Round this number to the nearest dollar. Find your number. $ 5. 8 7 Circle the number where the dollars are. Round this number to the nearest Round this number to the nearest dollar. Look right next door. $ 5. 8 7 Draw an arrow to the right of the circled number. Round this number to the nearest Round this number to the nearest dollar. 4 or less, just ignore. $ 5. 8 7 8 is greater than 4 so go to the next line of the poem. Round this number to the nearest Round this number to the nearest dollar. 5 or more, add 1 more. +1 $ 5. 8 7 Since 8 is greater than 5 add 1 to the 5. Round this number to the nearest Round this number to the nearest dollar. 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. The Answer The Answer $5.87 rounded to the nearest dollar is $ 6. 0 0 Round this number to the nearest Round this number to the nearest tenth place. Find your number. 4. 8 7 1 Circle the number in the tenths place. Round this number to the nearest Round this number to the nearest tenth place. Look right next door. 4. 8 7 1 Draw an arrow to the right of the circled number. Round this number to the nearest Round this number to the nearest tenth place. 4 or less just ignore. 4. 8 7 1 8 is greater than 4 so go to the next line of the poem. Round this number to the nearest Round this number to the nearest tenth place. 5 or more, add 1 more. +1 4. 8 7 1 Since 7 is greater than 5, add 1 to the 8. Round this number to the nearest Round this number to the nearest tenth 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. The Answer The Answer 4.871 rounded to the nearest tenth place is 4. 9 ...
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This note was uploaded on 11/22/2011 for the course EL ED 361 taught by Professor Brotherraymond during the Fall '11 term at BYU.

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