Estimating Sums and Differences

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

CCSS.3.NBT.A.2

Michael jogged 8 miles on Monday and Tuesday, and 12 miles on Friday. About how far did Michael jog altogether?

• 32 miles

• 28 miles

• 20 miles

• 30 miles

Tags

CCSS.3.NBT.A.2

 $Estimate\ to\ the\ tens\ place.\ \$   $488\ -\ 351\ =\$  

• 140

• 160

• 130

• 200

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

 $Estimate\ to\ the\ hundreds\ place.\ \ \left(Round\ and\ solve\right)$   $937\ -\ 288\ =\$  

• 400

• 500

• 600

• 700

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

 $655\ +111\ =\$   $Estimate:\ Round\ to\ the\ nearest\ ten\ and\ hundred.\$   

• 800 and 700

• 760 and 866

• 750 and 700

• 770 and 800

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.B.4

CCSS.5.NBT.B.7

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

CCSS.3.OA.D.8

To celebrate Halloween a family is counting pumpkin seeds. Max and his dad counted 243; Brita and her mom counted 333. About how many more seeds did Brita and her mom count?

• 85

• 100

• 300

• 500

Tags

CCSS.3.NBT.A.2

491 people attended the school play.  422 people attended the football game.  Ryan rounds to the nearest hundred and estimates that 800 people attended both events.  Is his estimate correct?  Explain

• Yes, because 400 + 400 = 800

• No, because 500 + 400 = 900

• No, because he did not estimate correctly.

• Yes, because he estimated correctly. 

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

While on a trip, Becca counted 148 red cars and 153 blue cars. Jasmine, her sister, counted 184 white cars and 92 green cars. Rounding to the tens place, who counted more cars?

• Becca counted more, she got 300

• Jasmine counted more, she got 300

• Becca counted more, she got 250

• Jasmine counted more, she got 250

Tags

CCSS.3.NBT.A.1

CCSS.3.NBT.A.2

CCSS.3.OA.D.8

Which answer is reasonable for the following problem: Sally went shopping with $50. Could she buy a shirt for $17 and pants for $29?

• No, she doesn't have enough money.

• Yes, she has enough money.

Tags

CCSS.3.NBT.A.2

CCSS.3.OA.D.8