# Adding and subtracting to 1000

> Grade 3: column addition, column subtraction with exchange, add and subtract 10s and 100s mentally, estimate and check, word problems.

Source: https://olyclass.com/library/math-g3-add-sub-3digit-en/

- Subject: Math
- Level: Grade 3
- Practice: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=math-g3-add-sub-3digit-en
- Copy and edit it: https://olyclass.com/library?copy=math-g3-add-sub-3digit-en
- Games it plays well in: [Penalty Kick](https://olyclass.com/classroom-games/penalty-kick/), [Fishing Pond](https://olyclass.com/classroom-games/fishing-pond/), [Claw Machine](https://olyclass.com/classroom-games/claw-machine/), [Lucky Drop](https://olyclass.com/classroom-games/lucky-drop/)

## Questions

1. What is 243 + 125? (268 / 358 / 368 / 378)
   Answer: 368
2. What is 457 + 285? (632 / 642 / 732 / 742)
   Answer: 742
3. Adding 368 and 275 gives 643.
   Answer: True
4. What is 574 − 231? (333 / 343 / 353 / 805)
   Answer: 343
5. What is 802 − 356? (446 / 456 / 546 / 554)
   Answer: 446
6. What is 631 − 478?
   Answer: 153
7. What is 347 + 100? (337 / 447 / 457 / 547)
   Answer: 447
8. What is 520 − 30? (490 / 500 / 510 / 590)
   Answer: 490
9. What is 650 + 70? (620 / 710 / 720 / 820)
   Answer: 720
10. Subtracting 100 from 705 gives 605.
   Answer: True
11. Round 304 and 497 to the nearest 100, then add them. What is the estimate?
   Answer: 800
12. Which sum is the best estimate for 612 − 288? (600 − 200 / 600 − 300 / 700 − 200 / 700 − 300)
   Answer: 600 − 300
13. The answer to 499 + 302 must be less than 700.
   Answer: False
14. A shop has 245 red pens and 178 blue pens. How many pens in all? (323 / 413 / 423 / 433)
   Answer: 423
15. A book has 400 pages. Mia has read 167. How many pages are left?
   Answer: 233
16. A bus holds 120 people. 85 are on it. How many more can get on? (205 / 25 / 35 / 45)
   Answer: 35