Casting Out Nines Worksheet

Speed calculation lesson 13: Check it with nines · Set 374 · 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: 89 × 64 = 5696. Correct or wrong? (a) correct (b) wrong
2. 2.Check with nines: 42 × 37 = 1554. Correct or wrong? (a) wrong (b) correct
3. 3.Check with nines: 22 × 50 = 1100. Correct or wrong? (a) wrong (b) correct
4. 4.Check with nines: 925 + 263 = 1188. Correct or wrong? (a) correct (b) wrong
5. 5.Check with nines: 253 + 279 = 533. Correct or wrong? (a) wrong (b) correct
6. 6.Check with nines: 531 + 443 = 969. Correct or wrong? (a) wrong (b) correct
7. 7.Check with nines: 18 × 36 = 648. Correct or wrong? (a) correct (b) wrong
8. 8.Check with nines: 651 + 369 = 1020. Correct or wrong? (a) wrong (b) correct
9. 9.Check with nines: 268 + 376 = 646. Correct or wrong? (a) correct (b) wrong
10. 10.Check with nines: 957 + 647 = 1604. Correct or wrong? (a) wrong (b) correct
11. 11.Check with nines: 95 × 66 = 6276. Correct or wrong? (a) correct (b) wrong
12. 12.Check with nines: 539 + 719 = 1256. Correct or wrong? (a) correct (b) wrong
13. 13.Check with nines: 24 × 41 = 984. Correct or wrong? (a) wrong (b) correct
14. 14.Check with nines: 27 × 85 = 2298. Correct or wrong? (a) correct (b) wrong
15. 15.Check with nines: 74 × 34 = 2516. Correct or wrong? (a) wrong (b) correct
16. 16.Check with nines: 33 × 77 = 2535. Correct or wrong? (a) correct (b) wrong
17. 17.Check with nines: 16 × 62 = 992. Correct or wrong? (a) correct (b) wrong
18. 18.Check with nines: 821 + 468 = 1285. Correct or wrong? (a) correct (b) wrong
19. 19.Check with nines: 96 × 96 = 9216. Correct or wrong? (a) wrong (b) correct
20. 20.Check with nines: 18 × 32 = 576. Correct or wrong? (a) wrong (b) correct
21. 21.Check with nines: 464 + 184 = 649. Correct or wrong? (a) wrong (b) correct
22. 22.Check with nines: 885 + 572 = 1457. Correct or wrong? (a) wrong (b) correct
23. 23.Check with nines: 767 + 288 = 1048. Correct or wrong? (a) wrong (b) correct
24. 24.Check with nines: 18 × 60 = 1080. Correct or wrong? (a) wrong (b) correct
25. 25.Check with nines: 34 × 88 = 2992. Correct or wrong? (a) wrong (b) correct
26. 26.Check with nines: 46 × 60 = 2760. Correct or wrong? (a) wrong (b) correct
27. 27.Check with nines: 15 × 33 = 494. Correct or wrong? (a) correct (b) wrong
28. 28.Check with nines: 67 × 39 = 2611. Correct or wrong? (a) wrong (b) correct
29. 29.Check with nines: 244 + 979 = 1223. Correct or wrong? (a) correct (b) wrong
30. 30.Check with nines: 16 × 17 = 272. Correct or wrong? (a) correct (b) wrong
31. 31.Check with nines: 415 + 214 = 629. Correct or wrong? (a) wrong (b) correct
32. 32.Check with nines: 93 × 45 = 4192. Correct or wrong? (a) wrong (b) correct
33. 33.Check with nines: 999 + 646 = 1649. Correct or wrong? (a) correct (b) wrong
34. 34.Check with nines: 948 + 198 = 1142. Correct or wrong? (a) wrong (b) correct
35. 35.Check with nines: 12 × 84 = 1008. Correct or wrong? (a) wrong (b) correct
36. 36.Check with nines: 36 × 22 = 792. Correct or wrong? (a) wrong (b) correct
37. 37.Check with nines: 717 + 506 = 1223. Correct or wrong? (a) wrong (b) correct
38. 38.Check with nines: 89 × 38 = 3379. Correct or wrong? (a) correct (b) wrong
39. 39.Check with nines: 26 × 42 = 1092. Correct or wrong? (a) correct (b) wrong
40. 40.Check with nines: 32 × 20 = 643. Correct or wrong? (a) wrong (b) correct

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