rounding. copyright 2000 by monica yuskaitis objectives n to be able to round numbers to the...
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RoundingRounding
Copyright © 2000 by Monica Yuskaitis
ObjectivesObjectives To be able to round numbers to the nearest To be able to round numbers to the nearest ten To be able to round numbers to the nearest To be able to round numbers to the nearest
hundredhundred To be able to round numbers to the nearest To be able to round numbers to the nearest
thousandthousand To be able to round numbers to the nearest To be able to round numbers to the nearest ten ten
thousandthousand To be able to round numbers to the nearest To be able to round numbers to the nearest
hundred thousandhundred thousand To be able to round numbers to the nearest To be able to round numbers to the nearest millionmillion
Copyright © 2000 by Monica Yuskaitis
ObjectivesObjectives To be able to round numbers To be able to round numbers
to the nearest to the nearest tenthtenth To be able to round numbers To be able to round numbers
to the nearest to the nearest hundredthhundredth To be able to round numbers To be able to round numbers
to the nearest to the nearest millionthmillionth
Copyright © 2000 by Monica Yuskaitis
VocabularyVocabulary Round – to replace an exact Round – to replace an exact
number by another that is close number by another that is close to it in value and easier to use. to it in value and easier to use. For example, 52, rounded to the For example, 52, rounded to the nearest ten is 50.nearest ten is 50.
Copyright © 2000 by Monica Yuskaitis
Memorize this PoemMemorize this Poem
Find your number.Look right next door.4 or less just ignore.5 or more, add 1 more.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
ten.ten.
Find your number.4 7
Circle the number in the tens place.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
ten.ten.
Look right next door.
4 7Draw an arrow to the right of the
number.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
ten.ten.
4 or less, just ignore. 4 7
7 is larger than 4 so go to the next line of the poem.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
ten.ten.
5 or more, add 1 more.
4 7Add 1 to the 4.
+1
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
ten.ten.
5 or more, add 1 more. 5 0
After adding 1 to the 4, all the numbersto the right of the 5 become 0’s.
Copyright © 2000 by Monica Yuskaitis
The AnswerThe Answer4 7 rounded to the
nearest tens place is5 0
40 5047
Note 47 is closer to 50 on the number line.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
hundred.hundred.
Find your number.9 8 6
Circle the number in the hundreds place.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
hundred.hundred.
Look right next door.
9 8 6Draw an arrow to the right of the
number.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
hundred.hundred.
4 or less, just ignore.9 8 6
8 is larger than 4 so go to the next line of the poem.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
hundred.hundred.
5 or more, add 1 more.
9 8 6Add 1 to the 9.
+1
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
hundred.hundred.
5 or more, add 1 more. 1, 0 0 0
After adding 1 to the 9, all the numbersto the right of the 10 become 0’s.
Copyright © 2000 by Monica Yuskaitis
The AnswerThe Answer986 rounded to the nearest hundreds
place is1, 0 0 01,000900 986
Note 986 is closer to 1,000 on the number line.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
thousand.thousand.
Find your number.
3 5, 3 2 7Circle the number in the thousands
place.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
thousand.thousand.
Look right next door.
3 5, 3 2 7Draw an arrow to the right of the
number.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
thousand.thousand.
4 or less, just ignore.3 5, 3 2 7
Since 3 is less than 4 we do not changethe 5.
Copyright © 2000 by Monica Yuskaitis
Round this number to the Round this number to the nearestnearest
thousand.thousand.
4 or less, just ignore.3 5, 0 0 0
Change the numbers to left of 5 to 0’s.
Copyright © 2000 by Monica Yuskaitis
The AnswerThe Answer35,327 rounded to the nearest thousand is3 5, 0 0 0
35,000 36,00035,327
Note 35,327 is closer to 35,000 on the number line than to 36,000.
Copyright © 2000 by Monica Yuskaitis
Round these numbers to Round these numbers to the nearest ten.the nearest ten.
1 3 9
4 52 8 2
9 7
1 4 0
5 0
2 8 0
1 0 0
Copyright © 2000 by Monica Yuskaitis
Round these numbers to Round these numbers to the nearest hundred.the nearest hundred.
2, 1 3 9
1 9, 7 4 5 2 8 2
3, 1 9 7
2, 1 0 0
1 9, 7 0 0
3 0 0
3, 2 0 0
Copyright © 2000 by Monica Yuskaitis
Round these numbers to Round these numbers to the nearest thousand.the nearest thousand.
2, 8 3 9
1 9, 4 4 5 8, 9 8 2
4 3,1 9 7
3, 0 0 0
1 9, 0 0 0
9, 0 0 0
4 3, 0 0 0
Copyright © 2000 by Monica Yuskaitis
CreditsCredits Illustrations from:Illustrations from:
Clipart from ClickArt 125,000 Clipart from ClickArt 125,000 Deluxe Image Pak, T/Maker Co., Deluxe Image Pak, T/Maker Co., Broderbund Software, Inc.Broderbund Software, Inc.
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