Rounding & Estimating Sums

What is 52 rounded to the nearest ten?

• 60

• 55

• 50

• 100

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

What is 715 rounded to the nearest hundred?

• 720

• 800

• 700

• 710

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round to the nearest 100 to estimate the difference:

510 - 396 =

• 200

• 300

• 100

• 400

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

A museum has 237 works of art on the first floor. The second floor has 349 works of art. The third floor has 219 works of art. About how many works of art in all? (Use greatest place value.)

• 800

• 700

• 750

• 660

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

Seth bought a pair of sneakers for $48 and a jacket for $64. Estimate the total amount that he spent for the sneakers and jacket

• $112

• $100

• $110

• $120

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

Mr. Avery’s class made $118 for the fundraiser. Mrs. Bolero’s class made $189 for the fundraiser. Which of these statements shows the best estimate of the total amount both classes raised?

• $100 + $200 = $300

• $125 + $150 = $275

• $100 + $100 = $200

• $200 + $200 = $400

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

237 fifth graders and 346 fourth graders went on a field trip. Estimate how many more fourth graders were on a field trip than fifth graders.

• 200 more
• 109 more
• 100 more
• 110 more

Tags

CCSS.4.NBT.A.3

CCSS.4.NBT.B.4

CCSS.4.OA.A.3

Use compatible numbers to estimate the value of 76 + 26.

• 75 + 25 = 100.
• 80 + 30 = 110
• 76 + 26 = 102
• 70 + 20 = 90

Tags

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

Jill took 32 minutes to complete math homework and 16 minutes to complete reading. About how many minutes did Jill use for homework?

• 48 minutes

• 50 minutes

• 55 minutes

• 40 minutes

Tags

CCSS.3.MD.A.1

• 140

• 160

• 130

• 200

Tags

CCSS.3.NBT.A.1

CCSS.3.OA.D.8