5.1.

Write an expression for each situation: the product of 2 and a number

• 2 x 3

• 6 x 2

• 2 : 3

• 6 + 2

• 6 - 5

Find the value of the expression if f = 10 and g = 5.

(f ÷ g) × 9 =

• 18

• 17

• 16

• 15

Find the value of the expression if f = 10 and g = 5.

(f × g) ÷ 5 =

A art teacher has 7 boxes of pens. Each box contains 8 pens. If the teacher bought 2 more boxes of pens, how many pens will the teacher have?

Eduardo has 5 CDs with 9 songs on each of them. If Eduardo lets a friend borrow 2 of his CDs, how many songs will be on the CDs he has left?

Adamo is 12 years old. He is 6 years older than his younger sister Sayra. Choose the right answers to complete the table to find how old Sayra will be when Adamo is 32 years old.

• 18, 22, 26

• 20, 22, 24

• 24, 27, 30

• 18, 20, 22

Ramona folded 7 pieces of origami on Saturday. After she folded more origami on Sunday, she had a total of 14 pieces of origami. How many pieces of origami did she fold on Sunday?

Mike read 12 pages of a book on Wednesday. After he read more pages on Thursday, he read a total of 25 pages. How many pages did he read on Thursday?

Find the missing number.

8 + _____ = 13

Find the missing number.

3 + _____ = 11