Factors vs. Multiples
Prime vs. Composite
Sum, Product, Quotient, Difference
Area vs. Perimeter
100
Find the first three multiples of 7
Find the first three multiples of 7
7, 14, 21
(Multiples: skip-count by the number)
100
Define "prime number"
A prime number is a number that only has two factors, 1 and itself.
100
Find the sum of 1,235 and 521
The sum is 1756.
1,235 + 521 = SUM
100
A rectangle has an area of 44 square inches. One of the sides is 4 inches long. What is the other dimension?
A rectangle has an area of 44 square inches. One of the sides is 4 inches long. What is the other dimension?
11, because 4 x 11 = 44
200
Find all of the factors of 12
(Hint: there are six of them)
Find all of the factors of 12
1, 2, 3, 4, 6, 12
(Factors: All the numbers/dimensions you multiply to equal the number.)
200
Define "composite number"
A composite number is a number that has more than two factors.
A number can be prime, or composite, but it cannot be both.
200
Find the product of 27 and 15
27 x 15 = 405
__ x __ = product
200
A rectangle has one side that is 23 inches long, and another side that is 12 inches long. What is the perimeter?
A rectangle has one side that is 23 inches long, and another side that is 12 inches long. What is the perimeter?
70 inches, because (23x2) + (12x2) = 70 inches
300
Find all the factors of 23
The factors of 23 are 1, 23 (there are only two)
300
Is 2 a prime or composite number?
The number 2 is prime because it only has two factors, 1 and 2.
300
Find the difference between 2009 and 1,345
The difference is 664, because:
2009 -1345 = difference
300
What is the perimeter of this shape?
The perimeter is:
7 + 5 + 3 + 5 + 4 + 10 = 34 cm
(You have to add all the sides, not just the labeled ones)
400
Find four multiples of 12
Find four multiples of 12
12, 24, 36, 48
Multiples: Skip-count by the number
400
Is 9 a prime or composite number?
9 is a composite number because it has more than two factors. The factors of nine are:
1, 3, 9
400
Find the quotient when your dividend is 124 and your divisor is 4
The quotient is the answer to a division problem.
124 divided by 4 = 31
400
A rectangle has a dimension of 8 cm and an area of 48 square cm. What is its perimeter?
A rectangle has a dimension of 8 cm and an area of 48 square cm. What is its perimeter?
The perimeter is 28 cm, because:
8 x 6 = 48 (area, this means the missing dimension is 6) . Then to find perimeter you need to (8x2) + (6x2) = 28 cm
500
How many factors are in the number 36?
There are 9 factors for 36. They are:
1, 2, 3, 4, 6, 9, 12, 18, 36
(Do not count the #6 twice).
500
Is 27 a prime or composite number?
27 is a composite number because it has more than 2 factors.
The factors of 27 are: 1, 3, 9, 27
500
What two numbers have a sum of 18 and a difference of 4?
7 and 11, because:
7 + 11 = 18
11 - 7 = 4
500
A rectangle has a perimeter of 132 cm. One of the dimensions is 33 cm. How long is the other dimension?
Bonus: what is another name for the shape.
A shape has a perimeter of 132 cm. One of the dimensions is 33 cm. How long is the other dimension?
The other dimension is 33, because:
(33 x 2) + (33 x 2) = 132 cm. In other words, the shape is a square.