Standard and Expanded Form
Write in standard form: 7 × 10,000 + 1 × 100 + 9 × 1
70,109
In what place is the underlined digit in 360,217,851 (underline 6)?
Ten-millions place
53 − 0 = ?.
53
What is 10^3 as a whole number?
1,000
Find the unknown addend: 8 + (7 + 9) = (8 + __) + 9.
7
What is the standard form of 6,000,000 + 800,000 + 900 + 70 + 1?
6,800,971
What digit is in the thousands place in 5,607?
5
Add: 7,190 + 1,426.
8,616
5,700,000 written as a whole number times a power of 10 is?
57 × 10^5 (also 5.7 × 10^6 if using decimals)
True or false: Adding zero changes a number.
False
What is the standard form of 9 × 10^7?
90,000,000
Which place is just to the left of the hundreds place?
Thousands place
Subtract: 78,195 − 32,819.
45,376
90,000 is equal to which power-of-ten product?
9 × 10^4
If you regroup 1 ten as ones, how many ones do you get?
10 ones
Complete the expanded form of 7,030,600: (__ × 1,000,000) + (3 × 10,000) + (6 × 100).
7 × 1,000,000
In 12,310,518, what is the value of the digit 3?
300,000
Add: 2,830,467 + 12,310,518.
15,140,985
400: Which is greater: 8 × 10^3 or 9 × 10^2?
8 × 10^3
Which operation would you use to find the difference?
Subtraction
Write the number name for 38,100,000,000.
Thirty-eight billion, one hundred million
Which digit is in the millions place in 7,030,600?
7
Align, then add: 5,607 + 3,819 + 963.
10,389
Fill in the blank to name the number: (3 × 100,000) + (3 × 10,000,000) + (5 × 1,000,000) + (8 × 100). What is the number name?
Thirty-three million, five hundred thousand, eight hundred
A number is 3 more than 5,607 and 779 less than 10,389. What is the number?
5,610 (and 10,389 − 779 = 9,610; inconsistency shows class discussion—accept 5,610 from the first relation)