1.1 Place Value Concepts
______ is 10 times as great as 5,000.
500
Write the number in word form and expanded form:
350,058
Word form:
three hundred fifty thousand, fifty-eight
expanded form:
3 X 100,000 + 5 X 10,000 + 5 X 10 + 8 X 1
104
10,000
An archaeologist finds a ceramic bowl that is about 400,000 years old. He finds a different artifact that is 1/100 times as old as the ceramic bowl. How much older is the ceramic bowl than the other artifact?
396,000 years older
City and Approximate Population:
Amador- 200
Angels- 4,000
Chula Vista- 200,000
Del Ray Oaks- 2,000
Marina- 20,000
Newark- 40,000
Oakland- 400,000
Which city's population is about 10 times the population of Newark?
Oakland
800 is 1/10 of what number?
8,000
Write the standard form and expanded form of
four hundred fifty thousand, fourteen
Standard form: 450,014
Expanded form:
4X100,000 + 5X10,000 + 1X10 + 4X1
6 X 106
6,000,000
The white truffle is the world's most expensive edible fungus, which cost up to three thousand dollars per kilogram. Write that number in standard form.
3,000
City and Approximate Population:
Amador- 200
Angels- 4,000
Chula Vista- 200,000
Del Ray Oaks- 2,000
Marina- 20,000
Newark- 40,000
Oakland- 400,000
Which City's population is 1/10 the population of Marina?
Del Ray Oaks
Your friend says 6,700 is 1/10 of 67,000. Is your friend correct? Explain.
Yes. 67,000 X 1/10 = 6,700
Which number does not belong?
-1X10,000 + 4X1,000 + 2X100 + 6X1
-fourteen thousand, two hundred six
-140,206
140,206
Write the number in expanded form using exponents:
53,124
(5X104) (3X103) + (1X102) + (2X10) + 4
What is the total cost for the directors and producers? write your answer in word form.
Cast- $17,242,551
Director- $2,712,480
Editing- $3,000,000
Music- $3,375,900
Producers- $2,759,981
Visual Effects- $13,932,452
$5,472,461
five million, four hundred seventy-two thousand, four hundred sixty-one
Crew- $14,435,870
Transportation- $1,370,793
Hotels- $2,929,178
What is the total cost for hotels and transportation? Write your answer in word form.
$4,299,971
four million, two hundred ninety-nine thousand, nine hundred seventy-one dollars
_____ is 1/10 of 5,000
500
Compare the values of the 9s in the number 537,499.
The value of the 9 in the tens place is 10 times as great as the value of the 9 in the ones place.
Write the number in standard form:
(3 X 102) + (8 X 101)
380
Your friend writes
(3 X 104) + (5 X 103) + (2 X 102) + 4 as the expanded form of thirty-five thousand, twenty-four. Explain what your friend did wrong.
Your friend had the incorrect exponent when multiplying the 2. The exponent should be 1 not 2.
A surf shop has been in business for two years. What are the total sales for Year 1 and Year 2 combined?
Year 1- $104
Year 2-$6 X 105
$610,000
Your friend says 9,900 is 10 times greater than 99,000. Is your friend correct?
No. 9,900 is 1/10 of 99,000.
Compare the values of the 7s in the number 4,877,034.
The value of the 7 in the ten thousands place is 10 times the value of the 7 in the thousands place.
Write the number in standard form:
(2 X 103) + (5 X 102) + (4 X 101)
2,540
Each student in a town voted for a new mascot. How many students voted in all?
Tiger- 2 X 103
Bear- 9 X 102
2,900 students
On which day did more people attend the event? How many more people?
Friday- 10 X 10 X 10
Saturday- 5 X 102
Friday. 500 more people