An array is an arrangement of objects into rows and colums that form a rectangle.
100
What is a prime number?
A number that has only 1 and itself as factors.
100
Please say aloud the following number:
859,234,081
Eight hundred fifty nine million, two hundred thirty four thousand, eighty one.
100
How can we easily find a factor string?
By finding factors or using a factor tree.
100
What is a square number?
A number that can be written as the product of a number multiplied by itself.
200
Give two arrays for the number 30 and correctly label the arrays.
Answers vary.
200
What is a composite number?
A number that has more than two factors.
200
Please put the following numerals into writing:
3,483,100.02
Three million, four hundred eighty three thousand, one hundred and two hundredths.
200
What do I mean when I say "10 to the 3rd power?" What is another way to write 10 to the 3rd power?
10x10x10 or 1,000
200
Name 4 square numbers.
Answers vary.
300
What direction do rows and columns go?
Rows go up and down and columns go right and left or side to side.
300
How can you tell that the number 22 is composite?
Possible Answers:
Because it is an even number, so we know at least 1, 2, and itself will be factors.
300
Write the following number:
8 in the hundreds place
4 in the hundred thousands place
3 in the hundredths place
6 in the thousands place
0 in spaces left over
406,800.03
300
What is the prime factorization for the number 28?
7 multiplied by 2 to the 2nd power.
300
Without using a calculator, what is 400 un-squared?
20
400
How many arrays can you make for a prime number?
Two. 1 multiplied by itself and itself multiplied by 1.
400
What is the rule for finding if a number is divisible by 3?
Add all of the digits and if the sum is divisible by 3 then the number is also divisible by 3.
400
Place write the following number:
3 in the tenths place
1 in the thousandths place
6 in the ones place
4 in the hundreds place
5 in the spaces left over
456.351
400
What is the prime factorization of 39?
13 multiplied by 3
400
Are prime numbers ever a square number? Why or why not?
No because they only have 1 and itself as a factor.
500
Please list all possible rectangular arrays for the number 24.
1x24
24x1
3x8
8x3
6x4
4x6
12x2
2x12
500
Is the number 1329 prime or composite?
Composite.
500
Aloud, please point and name each place value:
1,000,000.00