Rounding & Estimation PRACTICE

There are 75 people on a bus. 14 get off at the first stop.

What is the best estimate of how many people are left on the bus?

• 61

• 70

• 80

• 90

Mrs. Nicholson walked the halls 12 times on Monday, 19 times on Tuesday, and 16 times on Wednesday.

About how many times did Mrs. Nicholson walk the halls on all 3 days?

• 50

• 47

• 30

• 20

Julie has 42 beads. Amy has 31 beads. ESTIMATE how many beads the two girls have together.

(a)  

The gym has 799 seats on the home side.

There are 515 seats on the visitor side.

Which number sentence shows the best way to estimate how many MORE seats the home side has than the visitor side?

• 800-600=200

• 800-500=300

• 700-500=200

• 800+500=300

3 grade levels collected money for a new gym.

Third grade collected $422.

Fourth grade collected $278.

Fifth grade collected $865.

What is the best estimate of how much money all three grades collected all together?

(a)  

Mrs. Penny bought Christmas gifts for her kids.

She bought her son a TV for $265, her daughter a DVD player for $312, and herself a speaker for $274.

Which equation shows the best estimate of the amount that Mrs. Penny spent on all three gifts?

(a)  

Jakob flew a kite for 74 minutes. Addison flew her kite for 89 minutes.

What is the best estimate for how much LONGER Addison flew her kite than Jakob?

• 40 minutes

• 30 minutes

• 20 minutes

• 8 minutes

A hammerhead shark at the Denver Aquarium weighs 329 pounds. Kimberly located the weight of the shark on the number line.

About where would she have marked it on the number line?

A hammerhead shark at the Denver Aquarium weighs 329 pounds. Kimberly located the weight of the shark on the number line.

About where would she have marked it on the number line?

• Between 300 and 400, but closer to 300

• Between 300 and 400, but closer to 400

• Between 400 and 500, but closer to 400

• Between 400 and 500, but closer to 500

Chic-Fil-A served 82 customers on Tuesday and on Wednesday, they served 79 customers.

Which is the best estimate of the number of customers served on the 2 days?

• 150

• 160

• 170

• 180