Factors/Multiples
Decimals/Fractions
GCF/LCM
Order of Operations
Divisibility Rules
100
Which number is NOT a factor of 80? 1, 2, 4, 5, 8, 10, 18, 20, 40 and 80
18
100
Define a Multiple
a multiple is the product of any quantity and an integer
100
GCF of 72 and 128
GCF of 72 and 128 is 8
100
7 + (6 × 52 + 3)
160
100
Is 219301900 divisibly by 2?
Yes
200
Which number is NOT a factor of 128? 1, 2, 4, 8, 16, 36, 64, and 128
36 is NOT a factor. It should be 32.
200
Find the first 10 multiples of 5.
Find the first 10 multiples of 3.
What is the Least Common Multiple that both 3 and 5 share?
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Least Common Multiple: 15
200
LCM of 12 and 32
LCM of 12 and 32 = 96
200
9 - 5 ÷ (8 - 3) x 2 + 6
13
200
Is 8194 divisible by 3? Explain.
No. 8+1+9+4 = 22 is not divisibly by 3
300
What is the Prime Factorization of 144? Write your answer in both forms.
2 × 2 × 2 × 2 × 3 × 3
24 x 32
300
A store owner has 7.11 lbs. of candy. If she puts the candy into 9 jars, how much candy will each jar contain?
0.79 lbs
300
lcm of 16 and 36
lcm of 16 and 36 is 144
300
2
300
Is 4900 divisibly by 4?
Yes it ends in 00. Also, 900/4 = 225
400
What is the Prime Factorization of 208? Write your answer in both forms.
24 x 13
400
Ethan and four of his friends take a scenic drive to Bill Baggs State Park in Key Biscane, FL. They take turns at the wheel. Determine the total time taken to reach their destination, if each one drives for 32.5 minutes?
162.5 minutes
400
Bridget has swimming lessons every fifth day and diving lessons every third day. If she had a swimming lesson and a diving lesson on May 5, when will be the next date on which she has both swimming and diving lessons?
5 x 3 = 15
LCM = 15
5 + 15 = 20
Bridget will have both swimming and diving lessons on May 20th
400
9 x (5 + 3)2 - 144
432
400
Is 381 divisibly by 6? Explain.
No. It is divisibly by 3 because 3+8+1 = 12 is divisibly by 3. It is not divisibly by 2.
500
What is the Prime Factorization of 336? Write your answer in both forms.
24 × 3 × 7
500
One pound equals 0.45 kilograms. Cathy weighs 81 kilograms on the bathroom scales. Determine her weight in pounds.
180 pounds
500
A full moon occurs every 30 days. If the last full moon occurred on a Friday, how many days will pass before a full moon occurs again on a Frid
To find a common multiple, we can multiply 30 days by 7 days in a Week (to end up on Friday again). 30 x 7 = 210 It will take 210 days.
500
7 + 3 x 24 ÷ 6
15
500
Is 8410 divisibly by 8? Explain.
No. 410 is not divisible by 8.