Patterns with Exponents
Write 6 x 103 in three different.
6x1,000
6,000
6x10x10x10
500
A national park has eighty thousand, nine-hundred twenty-three and eighty-six hundredths acres of land. Write this number in standard form.
80,923.86
Use the symbol >, <, or = to compare:
4.15 O 4.051
4.15 > 4.051
Write two decimals that are equivalent to the given decimal:
5.300
5.3, 5.30
Solve:
9 x 103
9,000
What is the place value of the 9 in 29,672?
thousands
Write two decimals greater than 0.20 but less than 0.30.
0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29
Use the symbol >, <, or = to compare:
5.014 O 5.14
5.014 < 5.14
A grain of fine sand can have a diameter of 0.125 millimeter. Which numbers are less than 0.125?
a. 0.1
b. 0.2
c. 0.13
d. 0.12
e. 0.126
a and d
Solve:
(7x105)
700,000
What is the value of the 9s?
9,000,009
9 million and 9 ones/units
What is 3.045 written in expanded form?
(3x1) + (4x1/10) + (5x1/1000)
Alaina has a piece of wire that is 2.16 meters long. Peter has a piece of wire that is 2.061 meters long. Whose piece of wire is longer? How can you tell?
Alaina. 2.16 > 2.061, the digit in the tenths place is larger than Peter's.
Mrs. Martin has $7,000 in her savings account. Alonzo has 1/10 as much money in his account as Mrs. Martin. How much money does Alonzo have in his account?
Alfonzo has $700.
Solve:
2x10x10x10x10=
20,000
What are the PLACE VALUES of the 7s?
17,874,000
millions and ten thousands
In a basketball game, Dimitri averaged 12.375 rebounds per game. What is 12.375 written in expanded form?
(1x10)+(2x1)+(3x1/10)+(7x1/100)+(5x1/1000)
What is 15.839 rounded to the nearest tenth?
15.8 or 15.800
Find two numbers that round to 35.4 when rounded to the nearest tenth:
a. 35.45
b. 34.42
c. 35.391
d. 35.345
e. 35.44
c and e
Solve:
8 x 100
8
Colleen says she is thinking of a 4-digit number in which all the digits are the same. The value of the digit in the hundred place is 200, what is the number? Explain.
2, 222 The digit in the hundreds place is 2 since its value is 200. Since one digit is 2, all the digits are 2.
0.003 is 1/10 of which decimal?
0.03
What is 387.29 rounded to the nearest whole number?
387 or 387.00
Fill in the blanks:
(see pg. 51 #7)
Check student work.