Adding three digit numbers
Subtracting three digit numbers
Estimating
Story Problems
100

215 + 426

641

100

725 - 376

349

100

What would be the best estimate to find the difference of 781 - 207?

  1. 700 - 200

  2. 780 - 210

  3. 800 - 200

2

200

589 + 378

967

200

720 - 386

334

200

What would be the best estimate to find the sum of 619 + 289?

  1. 700 + 290

  2. 625 + 300

  3. 620 + 290

3

300

500 - 369

131

300

Austin has 4 packs of toy cars. He gets 9 more toy cars from his brother. Now he has 33 cars. How many toy cars are in each pack?

6

400

James has 68 movies. He gives 12 movies to his brother. James puts the rest of them in 8 equal rows. How many are in each row?

7

500

The third graders have 350 pens and pencils in the school store. They sell 57 pencils and 37 pens. How many pens and pencils are left in the store?

256