Topic 2 Adding Whole Numbers

If Danny rounds his number of baseball cards to the nearest ten, he would have 380. How many cards could he have in his collection?

• 369

• 372

• 384

• 387

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

There are 14 students in a scout troop. Eight of the students go on a nature hike. Which number sentence shows a way to find out how many students did not go on the hike?

• 8 - ■ = 14

• 8 + 14 = ■

• 14 - 8 = ■

• 14 - ■ = 8

Tags

CCSS.2.OA.A.1

A store stocks 511 boxes of cold cereal and 262 boxes of hot cereal. Which number sentence shows the best way to estimate the total boxes of cereal using compatible numbers?

• 500 + 200 = 700

• 500 + 250 = 750

• 550 + 250 = 800

• 550 + 300 = 850

A theater has 425 seats. There are 287 people who buy tickets for a show. Which is the best estimate of how many seats are empty?

• 120

• 140

• 160

• 180

Which number sentence is shown?

• 12 + 7 = 19

• 19 - 7 = 12

• 12 + 4 = 8

• 12 - 8 = 4

Tags

CCSS.2.NBT.B.5

A bakery had 85 cupcakes Wednesday morning. By Wednesday afternoon they had sold 47 cupcakes. How many cupcakes had not been sold? Use mental math to solve.

• 28

• 38

• 48

• 112

Tags

CCSS.2.OA.A.1

Which number sentence can be used to find how many buttons in all?

• 5 + 3 = 8

• 6 + 3 = 9

• 6 + 4 = 10

• 6 + 5 = 11

Tags

CCSS.1.OA.A.1

Mickey walks up 383 steps to get to the top of the lookout tower. What is 383 rounded to the nearest hundred?

• 100

• 200

• 300

• 400

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Emani watched birds at his bird feeder. He counted 28 birds in the morning and 39 birds in the afternoon. To add 28 + 39, Emani used mental math to break apart the addends. What is the missing number in his number sentence?

28 + 39 = (20 + 8) + (30 + ■ ) = 67

• 6

• 7

• 8

• 9

Tags

CCSS.2.NBT.B.5

Find the value for n that will make the following equation true.

40 = 35 + n

• 5

• 10

• 35

• 75

Tags

CCSS.1.OA.D.8