Multiplication
1234 x 4 = ?
4,936
84÷4=
21
List all the factors of 18.
1, 2, 3, 6, 9, 18
List the first 5 multiples of 6.
6,12,18,24,30
Find the Factors of 59
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
A bakery makes 12 dozen cookies each day. How many cookies do they make in one day? (Remember: 1 dozen = 12)
144 Cookies
A teacher has 156 pencils to share equally among 6 students. How many pencils does each student get?
26 pencils per student
Is 7 a factor of 42? Explain how you know.
Yes, 7 is a factor of 42 because 7×6=42 (or 42÷7=6 with no remainder)
Is 56 a multiple of 8? Explain how you know.
Yes, 56 is a multiple of 8 because 8×7=56
Sarah is making friendship bracelets. Each bracelet needs 15 beads. If she wants to make 8 bracelets, how many beads does she need in total?
120 beads (15×8=120)
A parking lot has 15 rows with 28 cars in each row. How many cars are in the parking lot?
420 Cars
275÷8=
Must Show Bar Model to Represent
34 R 3
What are all the common factors of 18 and 24?
1, 2, 3, 6
List the first 3 common multiples of 4 and 6.
12, 24, 36
A pizza party has 96 slices of pizza to share equally among 12 friends. How many slices does each friend get?
8 slices per friend (96÷12=8)
A school is ordering new books for the library. They need 45 books for each of the 13 grade levels (3rd, 4th, and 5th grade). How many books do they need to order total?
585 books
A farmer collected 432 eggs and wants to pack them into cartons. Each carton holds 6 eggs. How many cartons can the farmer fill?
72 Cartons
Mr. Garcia has 36 students in his class. He wants to arrange them into equal groups with no students left over. What are all the possible group sizes he could make?
1,2,3,4,6,9,12,18,36
Find the least common multiple (LCM) of 12 and 15.
60
The school bell rings every 45 minutes, and the lunch bell rings every 30 minutes. If both bells ring at 8:00 AM, at what time will they both ring together again?
9:30 AM (LCM of 45 and 30 is 90 minutes = 1 hour 30 minutes later)
A factory produces 67 toys per hour. If the factory runs for 1,825 hours in a year, how many toys does it produce?
122,275 toys
A library has 7,248 books that need to be placed on shelves. Each shelf can hold 9 books. How many shelves are needed?
808 Shelves
Find the greatest common factor (GCF) of 48 and 60
12
Hot dogs come in packages of 10. Hot dog buns come in packages of 8. What is the smallest number of hot dogs and buns you need to buy so that you have exactly the same number of each with none left over?
80 (LCM of 10 and 8 is 40, so you need 4 packages of hot dogs and 5 packages of buns, giving you 40 of each)
A bookstore received 1,248 books. They want to display them on shelves with exactly 8 books per shelf. After filling all the shelves, they realize each shelf costs $12. How much did all the shelves cost?
1,872 dollars (1,248÷8=156x2= 1,872)