Casting Out Nines Worksheet

Speed calculation lesson 13: Check it with nines · Set 776 · 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: 803 + 729 = 1532. Correct or wrong? (a) correct (b) wrong
2. 2.Check with nines: 464 + 813 = 1277. Correct or wrong? (a) correct (b) wrong
3. 3.Check with nines: 59 × 61 = 3599. Correct or wrong? (a) correct (b) wrong
4. 4.Check with nines: 56 × 24 = 1339. Correct or wrong? (a) correct (b) wrong
5. 5.Check with nines: 59 × 16 = 944. Correct or wrong? (a) wrong (b) correct
6. 6.Check with nines: 370 + 940 = 1309. Correct or wrong? (a) correct (b) wrong
7. 7.Check with nines: 22 × 52 = 1139. Correct or wrong? (a) correct (b) wrong
8. 8.Check with nines: 49 × 53 = 2596. Correct or wrong? (a) correct (b) wrong
9. 9.Check with nines: 926 + 434 = 1360. Correct or wrong? (a) wrong (b) correct
10. 10.Check with nines: 527 + 724 = 1248. Correct or wrong? (a) correct (b) wrong
11. 11.Check with nines: 31 × 86 = 2666. Correct or wrong? (a) wrong (b) correct
12. 12.Check with nines: 47 × 45 = 2109. Correct or wrong? (a) wrong (b) correct
13. 13.Check with nines: 36 × 58 = 2096. Correct or wrong? (a) correct (b) wrong
14. 14.Check with nines: 50 × 76 = 3800. Correct or wrong? (a) correct (b) wrong
15. 15.Check with nines: 630 + 466 = 1092. Correct or wrong? (a) wrong (b) correct
16. 16.Check with nines: 13 × 52 = 676. Correct or wrong? (a) wrong (b) correct
17. 17.Check with nines: 294 + 780 = 1079. Correct or wrong? (a) wrong (b) correct
18. 18.Check with nines: 793 + 208 = 999. Correct or wrong? (a) correct (b) wrong
19. 19.Check with nines: 34 × 45 = 1530. Correct or wrong? (a) wrong (b) correct
20. 20.Check with nines: 646 + 740 = 1385. Correct or wrong? (a) wrong (b) correct
21. 21.Check with nines: 42 × 14 = 588. Correct or wrong? (a) correct (b) wrong
22. 22.Check with nines: 316 + 416 = 732. Correct or wrong? (a) correct (b) wrong
23. 23.Check with nines: 292 + 376 = 676. Correct or wrong? (a) wrong (b) correct
24. 24.Check with nines: 527 + 506 = 1033. Correct or wrong? (a) wrong (b) correct
25. 25.Check with nines: 96 × 80 = 7680. Correct or wrong? (a) correct (b) wrong
26. 26.Check with nines: 239 + 756 = 992. Correct or wrong? (a) correct (b) wrong
27. 27.Check with nines: 198 + 912 = 1118. Correct or wrong? (a) correct (b) wrong
28. 28.Check with nines: 36 × 91 = 3271. Correct or wrong? (a) wrong (b) correct
29. 29.Check with nines: 636 + 938 = 1574. Correct or wrong? (a) correct (b) wrong
30. 30.Check with nines: 38 × 12 = 456. Correct or wrong? (a) correct (b) wrong
31. 31.Check with nines: 16 × 98 = 1568. Correct or wrong? (a) correct (b) wrong
32. 32.Check with nines: 95 × 80 = 7600. Correct or wrong? (a) wrong (b) correct
33. 33.Check with nines: 357 + 665 = 1022. Correct or wrong? (a) wrong (b) correct
34. 34.Check with nines: 39 × 30 = 1165. Correct or wrong? (a) wrong (b) correct
35. 35.Check with nines: 83 × 32 = 2656. Correct or wrong? (a) correct (b) wrong
36. 36.Check with nines: 139 + 710 = 850. Correct or wrong? (a) wrong (b) correct
37. 37.Check with nines: 29 × 46 = 1334. Correct or wrong? (a) wrong (b) correct
38. 38.Check with nines: 44 × 59 = 2590. Correct or wrong? (a) wrong (b) correct
39. 39.Check with nines: 636 + 185 = 829. Correct or wrong? (a) wrong (b) correct
40. 40.Check with nines: 19 × 55 = 1045. Correct or wrong? (a) correct (b) wrong

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