Adding and Subtracting Estimating

Ms. Rafferty has 210 students in her class. Mr. Raitano has 180 students in his class. How many more students are in Ms. Rafferty's class?

• 170 students

• 30 students

• 70 students

• 390 students

Endeavor Charter School has 352 students and Wake Forest Charter School has 329 students. How many students are there in total?

• 681 students

• 673 students

• 671 students

• 701 students

Estimate  24+67=

• 910

• 80

• 95

• 90

Miles bought 231 cows and Ally bought 392 cows. About how many total cows did they buy?

• 600 cows

• 500 cows

• 200 cows

• 100 cows

Monika drinks 1,466 milliliters of water a day. Victor drinks 2,895 mililiters more than Monika. How much water does Victor drink?

• 4361 milliliters

• 4351 milliliters

• 1429 milliliters

• 1329 milliliters

If you have 382, you might say you have ABOUT...

• 400

• 390

• 450

• 350

JJ has 390 Duke football cards. He gives Jake 176 of the football cards. About how many Duke football cards does JJ have left?

• 200

• 210

• 750

• 214

Estimate the difference of 376,009 and 19,809.

• 400,000

• 360,000

• 356,200

• 356,000

Estimate the sum of 436,876 and 5,403.

• 432,000

• 442,279

• 440,000

• 405,000

Estimate the difference of 705,987 and 86,907

• 720,000

• 619,000

• 719,000

• 620,000