Unit 3 Lesson 8 Read, Write, And Round Numbers Worksheet With Answer Key Page 2
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1
23–8
Name
Date
Write each number in standard form.
279
3,054
1. two hundred seventy-nine
2. three thousand, fifty-four
802
9,100
3. eight hundred two
4. nine thousand, one hundred
Round each number to the nearest ten.
50
80
80
20
5. 46
6. 81
7. 75
8. 24
Round each number to the nearest hundred.
800
1,000
700
100
9. 789
10. 971
11. 709
12. 148
Round each number to the nearest thousand.
7,000
4,000
8,000
3,000
13. 6,578
14. 4,489
15. 8,099
16. 2,761
Solve.
17. When you round a number, which digit in the number
helps you decide to round up or round down? Explain
your answer.
You look at the digit in the place to the right of
the place you are rounding to. If the digit is 5 or
greater, round up. If the digit is less than 5,
the digit in the place you are rounding to does
not change.
18. When you round a number, what should you do with
the digits to the right of the place you are rounding to?
Write zeros in all the places to the right of the
place you are rounding to.
99
UNIT 3 LESSON 8
Read, Write, and Round Numbers
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