Vocabulary
A group of three digits, separated by commas, starting from the right is called a
period
What is the number name for 7,526
seven thousand, five hundred twenty-six
166,742 to the thousands place?
167,000
Expanded form for 15,000
10,000 + 5,000
A process that determines which multiple of 10, 100, 1,000 (andso on) a number is closest to is called
rounding
Determine the value of the 9 in 926,415.
900,000
Round 5,861 to the hundreds?
5,900
Expanded form for 150,000
100,000 + 50,000
A statement that is believed to be true but has not yet been proven is called a
conjecture
What is the value of the 5 in 665, 246
5,000
Round 432,041 to the thousands?
432,000
Expanded form for 257,900
200,000 + 50,000 +7,000 + 900
The value given to a place a digit has in a number is called its
place value
How many times greater is the value of the
7 in 70,048 than the value of 7 in 17,992?
ten times greater
102,456 rounds to what using the ten thousands place?
100,000
Expanded form for 2,567,000
2,000,000+ 500,000 + 60,000 + 7,000
In a number, a period of three places to the left of the thousands period is called the ________ period.
millions
Violet has 30 glass tiles. She would like to mosaic tile a tabletop with 10 times that number of tiles. How many tiles does Violet want to use?
300
1,567,978 rounds to what in the tens place?
1,567,980
Expanded form for 999,999
900,000 + 90,000 + 9,000 + 900 + 90 + 9