Casting Out Nines Worksheet

Speed calculation lesson 13: Check it with nines · Set 632 · 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: 362 + 702 = 1064. Correct or wrong? (a) wrong (b) correct
2. 2.Check with nines: 78 × 55 = 4290. Correct or wrong? (a) correct (b) wrong
3. 3.Check with nines: 26 × 33 = 858. Correct or wrong? (a) wrong (b) correct
4. 4.Check with nines: 864 + 454 = 1318. Correct or wrong? (a) wrong (b) correct
5. 5.Check with nines: 40 × 92 = 3681. Correct or wrong? (a) wrong (b) correct
6. 6.Check with nines: 50 × 28 = 1392. Correct or wrong? (a) correct (b) wrong
7. 7.Check with nines: 417 + 419 = 836. Correct or wrong? (a) wrong (b) correct
8. 8.Check with nines: 820 + 784 = 1604. Correct or wrong? (a) wrong (b) correct
9. 9.Check with nines: 467 + 472 = 939. Correct or wrong? (a) correct (b) wrong
10. 10.Check with nines: 937 + 241 = 1178. Correct or wrong? (a) wrong (b) correct
11. 11.Check with nines: 592 + 353 = 945. Correct or wrong? (a) wrong (b) correct
12. 12.Check with nines: 719 + 823 = 1541. Correct or wrong? (a) wrong (b) correct
13. 13.Check with nines: 14 × 77 = 1081. Correct or wrong? (a) correct (b) wrong
14. 14.Check with nines: 88 × 66 = 5808. Correct or wrong? (a) correct (b) wrong
15. 15.Check with nines: 84 × 35 = 2940. Correct or wrong? (a) wrong (b) correct
16. 16.Check with nines: 87 × 68 = 5916. Correct or wrong? (a) wrong (b) correct
17. 17.Check with nines: 79 × 94 = 7426. Correct or wrong? (a) correct (b) wrong
18. 18.Check with nines: 201 + 360 = 561. Correct or wrong? (a) wrong (b) correct
19. 19.Check with nines: 98 × 68 = 6666. Correct or wrong? (a) wrong (b) correct
20. 20.Check with nines: 940 + 891 = 1838. Correct or wrong? (a) wrong (b) correct
21. 21.Check with nines: 57 × 93 = 5304. Correct or wrong? (a) correct (b) wrong
22. 22.Check with nines: 597 + 233 = 830. Correct or wrong? (a) wrong (b) correct
23. 23.Check with nines: 237 + 635 = 872. Correct or wrong? (a) correct (b) wrong
24. 24.Check with nines: 72 × 83 = 5976. Correct or wrong? (a) correct (b) wrong
25. 25.Check with nines: 84 × 17 = 1428. Correct or wrong? (a) correct (b) wrong
26. 26.Check with nines: 343 + 543 = 886. Correct or wrong? (a) correct (b) wrong
27. 27.Check with nines: 395 + 163 = 558. Correct or wrong? (a) wrong (b) correct
28. 28.Check with nines: 801 + 598 = 1399. Correct or wrong? (a) correct (b) wrong
29. 29.Check with nines: 18 × 29 = 522. Correct or wrong? (a) correct (b) wrong
30. 30.Check with nines: 754 + 515 = 1269. Correct or wrong? (a) wrong (b) correct
31. 31.Check with nines: 39 × 19 = 741. Correct or wrong? (a) wrong (b) correct
32. 32.Check with nines: 947 + 196 = 1151. Correct or wrong? (a) wrong (b) correct
33. 33.Check with nines: 475 + 788 = 1270. Correct or wrong? (a) wrong (b) correct
34. 34.Check with nines: 776 + 811 = 1584. Correct or wrong? (a) wrong (b) correct
35. 35.Check with nines: 58 × 59 = 3422. Correct or wrong? (a) correct (b) wrong
36. 36.Check with nines: 128 + 368 = 496. Correct or wrong? (a) wrong (b) correct
37. 37.Check with nines: 959 + 289 = 1248. Correct or wrong? (a) correct (b) wrong
38. 38.Check with nines: 620 + 909 = 1524. Correct or wrong? (a) correct (b) wrong
39. 39.Check with nines: 88 × 74 = 6512. Correct or wrong? (a) wrong (b) correct
40. 40.Check with nines: 36 × 92 = 3311. Correct or wrong? (a) wrong (b) correct

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