Factors and Multiples
List the first 5 multiples of 7
7, 14, 21, 28, 35.
There were some rabbits in a pen. Altogether I counted 56 feet. How many rabbits were in the pen?
14
Give the definition and example of a square number.
A factor times itself = a square number,
such as 4 x 4 = 16, so 16 is a square number.
What remainders are possible when the divisor is 12?
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11.
9614 x 5
48,070
List the factors of 30 (in order, as always)
1, 2, 3, 5, 6, 10, 15, 30.
How many cars are needed to take 46 children to the library after school if each car holds 6 children and 1 driver?
8 cars
Use 3 math terms you learned in this unit to describe the number 36.
ANY OF THE FOLLOWING: composite
even
square
multiple of 1, 2, 3, 4, 6, 9, 12, 18, or 36
factor of 36, 72, etc.
Write an equation using near facts for this problem:
45 divided by 6
6 x 7 + 3 = 45
28 x 76
2,128
What is the LCM of 10 and 12?
60
Pens cost $1.29 each. Use MENTAL MATH to find the total cost to buy 5 pens.
$6.45
Explain how you figured out the total in your mind.
What to the words sum, difference, product, and quotient have in common?
All describe the answer to a different math operation
The quotient is 13, the divisor is 6, and the remainder is 3. What is the dividend?
81
What is the LCM of 4, 6, and 8?
24
What is the GCF of 24 and 18?
6
If hot dogs come in packages of 8 and buns come in packages of 12, what is the minimum numbers of both hot dog and bun packages needed so every bun has a hot dog?
3 packages of hot dogs and 2 packages of buns.
What are the divisor and the dividend, and how are they related?
The divisor is the number being divided into another number, known as the dividend.
Jon said that 23 divided by 0 is 0, but Maren disagreed and said there is no answer. Who is right, and why?
Maren is right because the multiplication sentence that corresponds to that division problem would be 0 x 0 = 23, and that is incorrect.
No answer is possible, which means that the problem is undefined.
One strategy:
Round 299 to 300, multiply by 4 = 1200, then subtract 4 groups of 1 (4), resulting in the final answer of 1196.
How do you know if a number is prime?
It has EXACTLY 2 factors.
Matt has been collecting recycled cans for a charity drive. Each can is worth 5 cents. So far, he has raised $2.35. How many more cans does he need to collect to have a notation of $5.00?
53 cans
Briefly compare and contrast these terms:
multiple and factor
A multiple is a product of 2 factors;
a factor divides evenly into a multiple.
Use long division to solve the following:
79 divided by 4
19 r 3
I'm thinking of the smallest number that when divided by 4 has a remainder of 3, but when divided by 5 has a remainder of 0. What is the number?
15