Casting Out Nines Worksheet

Speed calculation lesson 13: Check it with nines · Set 828 · 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: 44 × 14 = 616. Correct or wrong? (a) correct (b) wrong
2. 2.Check with nines: 46 × 98 = 4516. Correct or wrong? (a) correct (b) wrong
3. 3.Check with nines: 35 × 51 = 1785. Correct or wrong? (a) correct (b) wrong
4. 4.Check with nines: 197 + 840 = 1037. Correct or wrong? (a) wrong (b) correct
5. 5.Check with nines: 38 × 66 = 2508. Correct or wrong? (a) correct (b) wrong
6. 6.Check with nines: 973 + 318 = 1286. Correct or wrong? (a) correct (b) wrong
7. 7.Check with nines: 277 + 188 = 470. Correct or wrong? (a) wrong (b) correct
8. 8.Check with nines: 584 + 790 = 1374. Correct or wrong? (a) correct (b) wrong
9. 9.Check with nines: 66 × 39 = 2574. Correct or wrong? (a) correct (b) wrong
10. 10.Check with nines: 873 + 238 = 1114. Correct or wrong? (a) correct (b) wrong
11. 11.Check with nines: 578 + 588 = 1165. Correct or wrong? (a) correct (b) wrong
12. 12.Check with nines: 122 + 913 = 1033. Correct or wrong? (a) wrong (b) correct
13. 13.Check with nines: 698 + 574 = 1272. Correct or wrong? (a) correct (b) wrong
14. 14.Check with nines: 499 + 897 = 1396. Correct or wrong? (a) correct (b) wrong
15. 15.Check with nines: 93 × 20 = 1866. Correct or wrong? (a) correct (b) wrong
16. 16.Check with nines: 53 × 44 = 2332. Correct or wrong? (a) correct (b) wrong
17. 17.Check with nines: 87 × 20 = 1734. Correct or wrong? (a) correct (b) wrong
18. 18.Check with nines: 89 × 13 = 1162. Correct or wrong? (a) correct (b) wrong
19. 19.Check with nines: 679 + 358 = 1040. Correct or wrong? (a) correct (b) wrong
20. 20.Check with nines: 20 × 35 = 700. Correct or wrong? (a) correct (b) wrong
21. 21.Check with nines: 38 × 13 = 494. Correct or wrong? (a) correct (b) wrong
22. 22.Check with nines: 206 + 662 = 868. Correct or wrong? (a) correct (b) wrong
23. 23.Check with nines: 52 × 85 = 4428. Correct or wrong? (a) wrong (b) correct
24. 24.Check with nines: 239 + 898 = 1141. Correct or wrong? (a) wrong (b) correct
25. 25.Check with nines: 87 × 84 = 7308. Correct or wrong? (a) wrong (b) correct
26. 26.Check with nines: 88 × 12 = 1058. Correct or wrong? (a) correct (b) wrong
27. 27.Check with nines: 58 × 96 = 5568. Correct or wrong? (a) correct (b) wrong
28. 28.Check with nines: 690 + 689 = 1379. Correct or wrong? (a) correct (b) wrong
29. 29.Check with nines: 75 × 25 = 1875. Correct or wrong? (a) correct (b) wrong
30. 30.Check with nines: 312 + 973 = 1290. Correct or wrong? (a) wrong (b) correct
31. 31.Check with nines: 17 × 14 = 245. Correct or wrong? (a) correct (b) wrong
32. 32.Check with nines: 272 + 587 = 854. Correct or wrong? (a) correct (b) wrong
33. 33.Check with nines: 777 + 947 = 1725. Correct or wrong? (a) wrong (b) correct
34. 34.Check with nines: 269 + 382 = 651. Correct or wrong? (a) wrong (b) correct
35. 35.Check with nines: 62 × 44 = 2728. Correct or wrong? (a) correct (b) wrong
36. 36.Check with nines: 35 × 46 = 1610. Correct or wrong? (a) correct (b) wrong
37. 37.Check with nines: 600 + 340 = 940. Correct or wrong? (a) correct (b) wrong
38. 38.Check with nines: 306 + 305 = 608. Correct or wrong? (a) correct (b) wrong
39. 39.Check with nines: 37 × 64 = 2368. Correct or wrong? (a) wrong (b) correct
40. 40.Check with nines: 83 × 59 = 4892. Correct or wrong? (a) correct (b) wrong

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