What are the factors of 17?
1 and 17
There were some rabbits in a pen. Altogether I counted 56 feet. How many rabbits were in the pen?
14 rabbits
Give a definition of a prime number
A number that has exactly two unique factors, 1 and itself. The numbers 2,3 and 5 are some examples of prime numbers.
What remainders are possible when the divisor is 12?
There are a total of 12:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11
This two- digit number is an odd number.
It is a prime number.
The product of the digits is 15.
53
How many factors does 28 have?
6
How many cars are needed to take 46 Girl Scouts to the community center after school if each car holds six Girl Scouts in addition to the driver?
8 cars
Use three math terms you learned in this unit to describe number 36.
Possible answers are:
It is..
- a composite number,
- even number,
- Square number,
- multiple of 1, 2, 3, 4, 6, 9, 18 and or 36
- a factor of 36, 72.
Write a related sentence that uses multiplication for 45/ 6
7x6+3=45
What is the least common multiple of 4,6 and 8?
24
Give an example of a number with exactly three different factors
4, 9, 25, 49....etc
Pens cost $1.29 each. Use mental math to figure out how much it will cost to buy five pens.
(You should have explained an efficient mental strategy to find the total of $6.45)
What do the words product, sum quotient and difference have in common?
All terms describe the answer as a result of an operation: multiplication, addition, division and subtraction.
The quotient is 13, the divisor is 6 and the remainder is 3. What is the dividend?
81
Explain how to multiply 299 times 4 in your head. Give your answer as well.
Answer: 1,196
One strategy would be to round 299 to 300, then multiply 300 by 4 to get 1,200. Since 300-299 is 1, you have 4 more than you need, so you must subtract 4 from 1,200 to get 1,196.
List the factors of 39
1, 3, 13, 39
Mr. Heckhaus has been collecting recycled cans for a charity drive. Each can is worth 5 cents. Mr. Heckhaus has raised $2.35. How many more cans does he need to collect in order to have a donation of $5.00?
53 cans
What are the divisor and dividend, and how are they related?
The divisor is the number in a division problem that divides into another number, known as the dividend.
Ms. Kwon said that 23/ 0= 0 but Mrs. Zemke disagreed and said there is no answer. Who is right? Explain.
Mrs. Zemke is right since the multiplication sentence that corresponds to the division problem is 0x0=23, which is false. No answer is possible, which means that the problem is undefined.
This number is composite.
The digits add to 12.
One of the factors is 13.
39
What is the greatest common factor of 24 and 18?
6
If hot dogs come in packages of eight and buns come in packages of 12, what is the minimum number of hot dog and bun packages needed so every bun has one hot dog?
3 packages of hot dogs and 2 packages of buns
Explain how a multiple and a factor are alike and different.
a multiple and factor both are terms used to describe multiplicative relationships; a factor is a number that divides exactly into a given whole number, and a multiple is a number that is the product of a given number and a whole number.
Make up a division word problem with a quotient of 3½ in which the answer includes 3 as the remainder
Answers will vary
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