Unit 3 Review

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CCSS.2.MD.C.8

CCSS.2.OA.A.1

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CCSS.2.MD.C.8

CCSS.2.OA.A.1

At a school, there were 58 kindergartners, 75 first graders, and 60 second graders.Which problem can be solved with this number sentence?

58 + 75 =

• What is the total number of first graders and second graders at the school?

• What is the total number of kindergartners and second graders at the school?

• What is the total number of kindergartners and first graders at the school?

• What is the total number of kindergartners, first graders and second graders at the school?

Tom's mom baked 28 cupcakes for him and his friends. His friends ate 12 cupcakes and Jerry ate 3 cupcakes. How many cupcakes are left.

• 13

• 25

• 16

• 43

There were 16 red pencils, 24 pink pencils and 7 black pencils in a box. Then Michael put 15 yellow pencils in the box. How many pencils are in the box now?

• 42

• 47

• 55

• 62

Mrs. Remington has 21 sharpened pencils. She gave 8 of her pencils to her students. How many pencil does Mrs. Remington have after she gave some to her students?

• 29

• 13

• 218

• 10

Jaxson had 9 toy cars. Jaxson gave some toy cars to his friend. Jaxon now has 7 cars. How many toy cars did Jaxson give to his friend?

• 16, because 9+7=16

• 11, because 9+2=11

• 2, because 9-7=2

• 7, because 9-2=7

In a parking lot, there were different types of vehicles. A police officer wanted to know how many wheels are there. If there where 4 cars, 3 vans, 3 trucks, and 1 motorcycle in the parking lot, which number sentence shows how to calculate the number f wheels in the barn?

• 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 +4 +4 + 2

• 4 + 3 + 3 + 2

• 4 + 4 + 4 + 2

• none of these

A group of numbers is shown below.

2,202 2,002 2,020 2,200

Which statement about two of these numbers is true?

• 2,202 < 2,200

• 2,020 > 2,200

• 2,002 > 2,200

• 2,200 < 2,202

One afternoon, Jon saw 15 rabbits in his yard. By that night, 8 had hopped away. How many rabbits are left in the yard?

• 7

• 23

• 15

• 8