Casting Out Nines Worksheet

Speed calculation lesson 13: Check it with nines · Set 616 · 40 questions

The fast method (Casting out nines): Find the nine-check number of each number: add the digits until one digit is left. Do the same sum (× or +) with those digits and shrink the result to one digit too. Shrink the given answer. Different → wrong. Same → it passes the check.

1. 1.Check with nines: 384 + 349 = 735. Correct or wrong? (a) wrong (b) correct
2. 2.Check with nines: 949 + 975 = 1924. Correct or wrong? (a) wrong (b) correct
3. 3.Check with nines: 96 × 57 = 5472. Correct or wrong? (a) wrong (b) correct
4. 4.Check with nines: 63 × 64 = 4028. Correct or wrong? (a) wrong (b) correct
5. 5.Check with nines: 99 × 59 = 5841. Correct or wrong? (a) correct (b) wrong
6. 6.Check with nines: 168 + 322 = 492. Correct or wrong? (a) wrong (b) correct
7. 7.Check with nines: 610 + 466 = 1071. Correct or wrong? (a) correct (b) wrong
8. 8.Check with nines: 554 + 429 = 982. Correct or wrong? (a) correct (b) wrong
9. 9.Check with nines: 561 + 515 = 1076. Correct or wrong? (a) wrong (b) correct
10. 10.Check with nines: 86 × 26 = 2236. Correct or wrong? (a) wrong (b) correct
11. 11.Check with nines: 14 × 68 = 952. Correct or wrong? (a) correct (b) wrong
12. 12.Check with nines: 35 × 69 = 2418. Correct or wrong? (a) correct (b) wrong
13. 13.Check with nines: 190 + 797 = 991. Correct or wrong? (a) correct (b) wrong
14. 14.Check with nines: 81 × 68 = 5502. Correct or wrong? (a) correct (b) wrong
15. 15.Check with nines: 94 × 77 = 7230. Correct or wrong? (a) wrong (b) correct
16. 16.Check with nines: 20 × 79 = 1584. Correct or wrong? (a) wrong (b) correct
17. 17.Check with nines: 73 × 17 = 1241. Correct or wrong? (a) wrong (b) correct
18. 18.Check with nines: 890 + 455 = 1345. Correct or wrong? (a) correct (b) wrong
19. 19.Check with nines: 669 + 298 = 967. Correct or wrong? (a) wrong (b) correct
20. 20.Check with nines: 895 + 463 = 1354. Correct or wrong? (a) correct (b) wrong
21. 21.Check with nines: 60 × 27 = 1623. Correct or wrong? (a) correct (b) wrong
22. 22.Check with nines: 531 + 642 = 1173. Correct or wrong? (a) correct (b) wrong
23. 23.Check with nines: 82 × 38 = 3116. Correct or wrong? (a) correct (b) wrong
24. 24.Check with nines: 830 + 148 = 978. Correct or wrong? (a) correct (b) wrong
25. 25.Check with nines: 51 × 15 = 765. Correct or wrong? (a) wrong (b) correct
26. 26.Check with nines: 156 + 558 = 714. Correct or wrong? (a) wrong (b) correct
27. 27.Check with nines: 82 × 31 = 2548. Correct or wrong? (a) correct (b) wrong
28. 28.Check with nines: 86 × 26 = 2228. Correct or wrong? (a) wrong (b) correct
29. 29.Check with nines: 149 + 468 = 613. Correct or wrong? (a) wrong (b) correct
30. 30.Check with nines: 69 × 55 = 3795. Correct or wrong? (a) correct (b) wrong
31. 31.Check with nines: 660 + 704 = 1364. Correct or wrong? (a) correct (b) wrong
32. 32.Check with nines: 461 + 950 = 1411. Correct or wrong? (a) correct (b) wrong
33. 33.Check with nines: 643 + 829 = 1472. Correct or wrong? (a) correct (b) wrong
34. 34.Check with nines: 86 × 40 = 3440. Correct or wrong? (a) correct (b) wrong
35. 35.Check with nines: 40 × 89 = 3560. Correct or wrong? (a) correct (b) wrong
36. 36.Check with nines: 315 + 662 = 984. Correct or wrong? (a) wrong (b) correct
37. 37.Check with nines: 274 + 543 = 817. Correct or wrong? (a) wrong (b) correct
38. 38.Check with nines: 64 × 46 = 2950. Correct or wrong? (a) correct (b) wrong
39. 39.Check with nines: 525 + 915 = 1445. Correct or wrong? (a) wrong (b) correct
40. 40.Check with nines: 144 + 390 = 534. Correct or wrong? (a) correct (b) wrong

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths