Rounding
Standard/Word/ Expanded Form
Powers of Ten
Patterns of 0's
Conversions
100
1. What is 81.827 rounded to the nearest hundredth?
81.83
100
6. In this number, which 7 has the greatest place value? 792,720,727
Hundred Million.
100
11. 92.82 times 10^5.
9,282,000
100
16. The ones place is how many times the tenths place?
Ten times.
100
21. 1 m = ___ cm
100 cm
200
2. What is 5.113 rounded to the nearest tenth?
5.1
200
7. What is the place value of the 5 in this number? 9.051
5 Hundredths
200
12. 410 divided by 10^4
.041
200
17. The 8 in 28.123 is _____ times the value of the 8 in 19.082.
100
200
22. 156 m= ____ mm
156,000 mm
300
3. What is 589.899 rounded to the nearest hundredth?
589.90
300
8. Write 95.092 in word form and expanded form with fractions.
Ninety-five and ninety-two thousandths. 9 x 10 + 5 x 1 + 9 x (1/100) + 2 x (1/1,000)
300
13. If I multiply 84.2 by 10 to the 5th power which way does the decimal move and how many places does it move? Then solve.
It moves backward 5 times. 8,420,000.
300
18. The 7 in 20.372 is ______ the value of the 7 in 17.93.
1/100
300
23. What does 7,000 millimeters equal in centimeters?
700 cm
400
4. Brenna mom said she could spend around 150 dollars. Since she knows around means round she rounds her amount to the nearest ten. So what's the most or least amount she could spend?
Least: $145 Most: $154
400
9. What makes this comparison true? 6 x 10 + 25 x (1/100) + 8 x (1/1,000) ___ sixty and three hundred forty-two thousandths.
<
400
14. Bobby had this number .000221 which he then multiplied and got the product of 221. What number did Bobby multiply by?
10 to the sixth power which is 1,000,000.
400
19. The value of the 8 in 18.59 is ________ the value of the 8 in 92.81.
10 times
400
24. Jackie has 2 meters of ribbon. She needs to have 8 pieces of 20 cm for a project. Will she have enough? If not how much more does she need, if yes how much extra does she have?
Yes, she will have enough. She will have 40 cm extra.
500
5. John rounded a number to the nearest hundred and got 1,600. What is the smallest and largest number he could have started with?
LARGEST: 1,649 SMALLEST: 1,550
500
10. What is the word form and expanded form (in decimals) of this number? 194,738.827
One hundred ninety-four thousand, seven hundred thirty-eight and eight hundred twenty-seven thousandths. 1 x 100,000 + 9 x 10,000 + 4 x 1,000 + 7 x 100 + 3 x 10 + 8 x 1 + 8 x (.1) + 2 x (.01) + 7 x (.001)
500
DAILY DOUBLE! 15. Freddi was teaching her mom about exponents. She said that 10^5 was equal to 500,000. Do you agree? Why or why not? Need LOTS of details in your explanation.
I disagree! When you use exponents it tells you how many times you multiply the main number. You don't multiply the number by the exponent! So in this case you need to do 10x10x10x10x10. So it really equals 100,000.
500
10. Complete the pattern. _______ 6.7 670 ______ ________ 670,000,000
.067 67,000 6,700,000
500
25. Ryan cut a one-half meter board. How many millimeters did he cut?
500 mm
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