Mastering One Variable Problems: Key Info & Reasonableness

Sarah has 15 apples. She gives some to her friend. Now she has 8 apples left. How many apples did she give away?

• 5

• 3

• 7

• 10

Tags

CCSS.2.OA.A.1

A book costs $12. If you buy 3 books, how much money do you spend in total?

• $36

• $24

• $30

• $48

Tags

CCSS.3.OA.A.3

Tom has a collection of 50 baseball cards. He wants to divide them equally among his 5 friends. How many cards will each friend get?

• 20

• 15

• 5

• 10

Tags

CCSS.3.OA.A.3

Lily is baking cookies. She has 24 cookies and wants to pack them into boxes with 6 cookies each. How many boxes does she need?

• 5

• 4

• 3

• 6

Tags

CCSS.3.OA.A.3

A farmer has 100 meters of fencing. He wants to create a rectangular garden. If the length of the garden is 30 meters, what is the width?

• 25 meters

• 35 meters

• 20 meters

• 15 meters

Tags

CCSS.3.MD.D.8

Emma read 45 pages of her book on Monday and 30 pages on Tuesday. If her book has 150 pages, how many pages does she have left to read?

• 100 pages

• 75 pages

• 60 pages

• 90 pages

Tags

CCSS.3.OA.D.8

A toy costs $25. If you have $100, how many toys can you buy?

• 3

• 4

• 5

• 2

Tags

CCSS.3.OA.A.3

Jake has 60 stickers. He gives away some stickers to his friends and now has 22 left. How many stickers did he give away?

• 50

• 28

• 45

• 38

Tags

CCSS.2.OA.A.1

A pizza is cut into 8 slices. If you eat 3 slices, how many slices are left?

• 4 slices

• 5 slices

• 3 slices

• 6 slices

Tags

CCSS.2.OA.A.1

A school has 200 students. If 50 students are in the 5th grade, how many students are in other grades?

• 50

• 200

• 150

• 100

Tags

CCSS.3.OA.A.3