Exercise 2.6 (add and subtract multiples of 10 and 100 mentally)

Exercise 2.6

Add and subtract the following problems using multiples of 10, 100 (Mentally)

1. 745 + 40 = 785

2. 328 + 30 = 358

3. 566 + 20 = 586

4. 475 + 100 = 575

5. 686 + 300 = 986

6. 345 +600 = 945

7. 6348 – 10 = 6338

8. 541 – 40 = 501

9. 495 − 300 = 195

10. 657 − 500 = 157

11. 895 – 500 = 395

12. 365 − 300 = 65