4th Unit 2- factors, multiples, area & perimeter

If you know that 4 × 5 = 20, which division facts do you know?

• 20 ÷ 4 = 5

• 4 + 5 = 9

• 20 ÷ 5 = 4

• 24 ÷ 6 = 4

Which set includes only prime numbers?

• 17, 23, 31

• 13, 21, 29

• 7, 14, 23

• 5, 10, 19

Which of the following lists all the factors of 24?

• 1, 2, 3, 4, 6, 8, 12, 24

• 1, 2, 4, 6, 8, 12, 24

• 1, 2, 3, 4, 6, 8, 12, 18, 24

• 1, 2, 3, 4, 6, 12, 24

John is planning a square flower garden. He wants to completely enclose the garden with fencing. How many feet of fencing will he have to buy if he decides to make each side of his garden 7 feet long?

• 14 feet

• 28 feet

• 42 feet

• 70 feet

Which statement is correct?

• The only factors of 7 are 7 and 1.

• The only factors of 11 are 11 and 1.

• 45+5=10

• 6 x 7 = 36

Which shows all the factors of 24?

• 1, 2, 3, 4, 6, 8, 12, 24

• 2, 4, 6, 8

• 3, 6, 9, 12

• 24

Which number sentence is part of the fact family for 8, 6, and 48?

• 6 + 8 = 14

• 48-6 = 42

• 48 ÷ 8 = 6

• 6 x 8 = 48

A city constructed a new garden in the shape of a square. The length of one side is 12 miles. What is the perimeter of the new garden?

• 24

• 36

• 48

• 60

Emma reads 2 books per week. This pattern shows the total number of books she had read after each of the first four weeks.

Week 1 = 2 books

Week 2 = 4 books

Week 3 = 6 books

Week 4 = 8 books

If the pattern continues, what will be the totals for the next two weeks?

• 5 books, 10 books

• 10 books, 12 books

• 5 books, 6 books

• 9 books, 10 books

A rectangular playground has a perimeter of 12 miles. It is 4 miles wide. What is the area of the park?

• 4 sq miles

• 8 sq miles

• 64 sq miles

• 48 sq miles