Decimals
As we go to the right of the decimal point, do the numbers get smaller or larger?
Smaller! When we go to the left however, the numbers get larger.
When we write a number in expanded form using exponents, what does the exponent tell us?
i.e. (1X103) + (3X102) + (5X101) + (8X100)
In 2010, the population of New York was 10,901,345 people. What is the value of the digit in the hundred thousands place in 10,901,345?
900,000
Compare the two numbers using =, < and >.
0.980 ____ 0.98
0.980 = 0.98
What number makes the following statement true?
0.07 is 10 times as great as ______
a. 0.7
b. 0.070
c. 0.007
d. 7.00
c. 0.007
How can we represent 4/1,000 as a decimal?
0.004
Write the number 167,832 in expanded form using exponents.
(1X105) + (6X104) + (7X103) + (8X102) + (3X101) + (2X100)
Write 7 X 10 X 10 X 10 X 10 X 10 X 10 with an exponent.
7 X 106
Order to decimals from least to greatest: 0.312, 0.032, 0.203
0.032, 0.203, 0.312
Write the number three million seven hundred twenty-nine thousand five hundred and six in standard form.
USE COMMAS IN THE CORRECT SPOT!!!
3,729,506
What is the value of the 4 in the number 35.64?
4 hundredths or 4/100
Find the product of 8 X 105
800,000
Is the 6 in the thousands place 10 times as big as the 6 in the tens place?
The number is 6,666
No. It is 100 times bigger than the 6 in the tens place. 6 in the thousands place is worth 6,000 and 6 in the tens place is worth 60.
Round the decimal, 4.62, to the nearest whole number.
4.62 rounds up to 5
Jonathan wins a race by 8 tenths of a second. Which decimal is equal to 8/10?
a. 8.00
b. 0.08
c. 0.80
d. 8.10
C. 0.80
Write the number 3,457,098 in expanded form without exponents.
3 X 1,000,000 + 4 X 100,000 + 5 X 10,000 + 7 X 1,000 + 9 X 10 + 8 X 1
What is the value of the digit 2 in 42,906.
2 thousand
Round the number 7.620 to the nearest tenth.
7.6
Write the number (7 X 1) + (9 X 1/1,000) in standard form.
7.009
Write the number 654.98 in expanded form using exponents.
(6 X 102) + (5 X 101) + (4 X 100) + (9 X 1/10) + (8 X 1/100)
Write 7 thousandths in standard number form.
0.007
Round the number 3.08 to the nearest tenth and explain how you rounded it.
3.08 rounds to 3.1
I looked at the number in the hundredths place. Since it was greater than 5, I rounded up and then dropped the hundredths digit.