Unit 1 Basic Math Operations

If Sally has 6 cookies and Billy gives her 9 more, how many cookies does Sally have in total?

• 15
• 12
• 21
• 3

Answer explanation

6 + 9 = 15 cookies

Tags

CCSS.3.NBT.A.2

There are 15 marbles in a bag. If Tim takes 7 marbles, how many marbles are left?

• 10
• 5
• 8
• 3

Answer explanation

15 - 7 = 8 marbles

Tags

CCSS.3.NBT.A.2

Mary has 4 baskets, and each basket contains 5 apples. How many apples does she have in all?

• 15
• 25
• 20
• 10

Answer explanation

4 baskets × 5 apples/basket = 20 apples

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

CCSS.3.OA.C.7

There are 18 candies, and they need to be distributed equally among 6 children. How many candies will each child get?

• 2

• 3

• 5

• 10

Answer explanation

18 candies ÷ 6 children = 3 candies/child

Tags

CCSS.3.OA.A.2

CCSS.3.OA.A.3

CCSS.3.OA.C.7

David has $25, and he earns $30 more. How much money does David have now?

• $55
• $10
• $40
• $70

Answer explanation

$25 + $30 = $55

Tags

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

A bookshelf had 40 books. If 15 books are taken out, how many books remain on the shelf?

• 30
• 10
• 20
• 25

Answer explanation

40 - 15 = 25 books

Tags

CCSS.3.NBT.A.2

There are 8 boxes, and each box contains 12 pens. How many pens are there in total?

• 24
• 100
• 72
• 96

Answer explanation

8 boxes × 12 pens/box = 96 pens

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

CCSS.3.OA.C.7

Tom has 30 chocolates, and he wants to share them equally among 5 friends. How many chocolates will each friend get?

• 8
• 6
• 5
• 10

Answer explanation

30 chocolates ÷ 5 friends = 6 chocolates/friend

Tags

CCSS.3.OA.A.2

CCSS.3.OA.A.3

CCSS.3.OA.C.7

If there are 14 birds on one tree and 9 on another, how many birds are there in total?

• 17
• 12
• 23
• 30

Answer explanation

14 + 9 = 23 birds

Tags

CCSS.3.NBT.A.2

Sarah had 50 stickers, and she gave away 18 to her friends. How many stickers does Sarah have now?

• 32
• 12
• 40
• 25

Answer explanation

50 - 18 = 32 stickers

Tags

CCSS.3.NBT.A.2