Rounding Estimating

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

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

• 75 + 25 = 100.

• 80 + 30 = 110

• 76 + 26 = 102

• 70 + 20 = 90

What is 238 rounded to the nearest ten?

• 200

• 300

• 230

• 240

What is 87 rounded to the nearest hundred?

• 100

• 0

• 90

• 80

What is the largest number that rounds down to 300 when rounding to the nearest 100?

• 400

• 350

• 349

• 250

Which of these numbers does NOT round to 50 when rounded to the nearest 10?

• 55

• 45

• 51

• 47

Select 2 numbers that round to 100 when rounded to the nearest 10.

• 96

• 102

• 110

• 107

When rounded to the nearest 100, the number 39 rounds to:

• 100

• 30

• 40

• 0

What is 52 rounded to the nearest ten?

• 60

• 55

• 50

• 100

What is 715 rounded to the nearest hundred?

• 720

• 800

• 700

• 710