Place Values
What is the value of the 9 in the number
293,672?
90,000
How would you read this number?
387,256,128
three hundred eighty seven million,
two hundred fifty six thousand,
one hundred twenty eight
What is 10 x 10 x 10 x 10
104
When you multiply a number by a power of 10, you move the decimal to the _________
Right
When you divide a number by a power of 10, you move the decimal to the _________
Left
3
How would you read this number?
456,673,124,800
four hundred fifty six billion,
six hundred seventy three million,
one hundred twenty four thousand,
eight hundred
Is this a power of 10?
410
No
(Powers of 10 must have BASES of 10)
2.3 x 1,000
2,300
6,452 ÷ 102
64.52
What is the standard form of the number
1,000 + 300 + 50 + 7
1,357
How would you read this number?
35.87
Thirty five and eighty seven hundredths
What is 105
100,000
88.4 x 103
88,400
98,600 ÷ 1,000
98.6
What is the expanded form of the number
4,305
4,000 + 300 + 5
or
(4 x 1,000) + (3 x 100) + (0 x 10) + (5 x 1)
Look at the number 78599368493
Where should the commas go?
78,599,368,493
The exponent is equal to the _____________ after the 1 in a power of 10
Number of zeros
0.077 x 104
770
4,813 ÷ 103
4.813
What always comes after the ones place?
A DECIMAL!
(may be invisible)
Look at the number 34532.245673
Where should the commas go?
34,532.245673
10,000 is 10 to the power of ____
4
Find the product of 156.34 and 10
1,563.4
Find the quotient of 83 and 103
0.083