Estimation Word Problems

I studied for 49 minutes on Tuesday and 57 minutes on Wednesday. Which number sentence shows the best way to estimate how many minutes I studied for both days? 

• 40+50=90

• 40+60=100

• 50+60=110

• 50+50=100

I am saving money for a trip to Disney. The theme park cost $385, food will cost $293 and gifts will cost $93. Which number sentence is the best estimate of the amount of money I will spend? 

• 390+290+90=

• 380+290+90=

• 390+300+100=

• 380+300+90=

There are 367 students in third grade and 158 in fourth grade. About how many more students are in third grade than fourth? 

• 600

• 300

• 520

• 200

I traveled 452 miles one week, 317 the other, and 289 the third week. Which is the best estimate of the number of miles I traveled? 

• 1,100

• 1,300

• 900

• 800

I sold 782 pencils, 235 erasers. What is the best estimate of the number of supplies we sold? 

• 1,000

• 900

• 800

• 1,100

I had 351 blue crayons, 329 green crayons, and 317 red crayons. Which shows the best way to estimate how many more blue than red crayons? 

• 300-200 

• 400-300

• 300-300

• 400-400

I bought a camera for $637 and a printer for $125. Which is the best estimate of how much more the camera cost than the printer? 

• 500

• 600

• 700

• 400

One pig weighed 326 and the other pig weighed 448. Which number sentence shows the best way to estimate the weight of the 2 pigs? 

• 500-300

• 500+400

• 400+300

• 400-300

I traveled 452 miles one week, 317 the other, and 289 the third week. Which is the best estimate of the number of miles I traveled?

• 1,100

• 1,300

• 900

• 800

I sold 782 pencils, 235 erasers. What is the best estimate of the number of supplies we sold?

• 800

• 1,000

• 1,100

• 900