Unit 3 Review

Jesus has some pencils, then his mom gave him 10 more. Now he has 40 pencils.

How many pencils did Julian start with?

• 50

• 10

• 30

• 40

Some kids were playing on the playground. Then, 10 kids joined them. Now there are 17 kids on the playground. How many kids were there first?

Choose the equation that models the problem and solution.

• 10 + ___ = 17 ; 7 kids

• 17 + 10 = __; 27 dogs

• 17 - 10 = ___ ; 10 dogs

• ___+ 10 = 17; 7 kids

Mustang Market sells bags of 10 erasers. Anahi wants 100 erasers. How many bags of erasers should she buy?

• 100 bags

• 1 bag

• 10 bags

• 1,000 bags

Adamari collects animal stickers. She has 27 animal stickers. How many does she need to get to 50?

• 30

• 77

• 33

• 23

How many hundreds are in 800?

• 0

• 80

• 8

• 800

Franz had 26 stickers. He gave some to Isaac. Now Franz has 10 Champ Bucks left. How many Champ Bucks did he give to Isaac?

• 16

• 36

• 56

• 26

Which two groups equal 100?

• 10 pennies

• 10 nickels

• 10 dimes

• 10 strips of 10 stickers

Genesis collects dog stickers. She had some stickers in his sticker book, then Alysson gave her 13 dog stickers. Now Genesis has 24 dog stickers.

How many stickers did Genesis start with?

• 10

• 11

• 20

• 23

Mumbere has 35 erasers. He gives some to Pierre. Now, Mumbere has 12 stickers. How many stickers did he give to Pierre?

• 23

• 47

• 12

• 13