Problem Solving with Multiplication and Division

Which set is only prime numbers?

• 2,3,5,9

• 3,5,7,51

• 5,11,23,81

• 11,23,29,79

An odd number times an odd number is

• even

• odd

• prime

• composite

What is true about the number 21?

• Odd and Prime

• Even and Composite

• Odd and Composite

• Even and Prime

What is true about the number 33?

• Odd and Prime

• Even and Composite

• Odd and Composite

• Even and Prime

Which set is composite only?

• 2,4,6,8

• 3,5,7,9

• 4,8,12,21

• 3,21,25,44

What is always true about whole numbers?

• Sum of two odds is odd.

• Sum of an odd and an even is an even.

• Sum of 2 odds is an even.

• Difference of two even numbers is odd.

When solving 25 x 19, first multiply 25 x 20, then

• Subtract 25

• Subtract 10

• Add 20

• Add 25

I walked 5 miles to school. Sam lives triple the distance. How far is his walk to school?

• 50 miles

• 30 miles

• 150 miles

• 15 miles

We have 150 cookies to share equally among 25 students. How many cookies does each student have?

• 4 cookies

• 6 cookies

• 1200 cookies

• 5 cookies

Your book club book is 300 pages. You must finish it in 25 days. How many pages must you read each day?

• 30 pages

• 12 pages

• 10 pages

• 25 pages