Casting Out Nines Worksheet

Speed calculation lesson 13: Check it with nines · Set 509 · 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: 27 × 65 = 1755. Correct or wrong? (a) correct (b) wrong
2. 2.Check with nines: 98 × 20 = 1953. Correct or wrong? (a) correct (b) wrong
3. 3.Check with nines: 34 × 76 = 2588. Correct or wrong? (a) wrong (b) correct
4. 4.Check with nines: 167 + 358 = 525. Correct or wrong? (a) wrong (b) correct
5. 5.Check with nines: 97 × 46 = 4462. Correct or wrong? (a) wrong (b) correct
6. 6.Check with nines: 863 + 558 = 1422. Correct or wrong? (a) wrong (b) correct
7. 7.Check with nines: 801 + 134 = 928. Correct or wrong? (a) correct (b) wrong
8. 8.Check with nines: 61 × 66 = 4026. Correct or wrong? (a) wrong (b) correct
9. 9.Check with nines: 299 + 139 = 438. Correct or wrong? (a) wrong (b) correct
10. 10.Check with nines: 56 × 95 = 5320. Correct or wrong? (a) wrong (b) correct
11. 11.Check with nines: 663 + 980 = 1641. Correct or wrong? (a) correct (b) wrong
12. 12.Check with nines: 917 + 659 = 1572. Correct or wrong? (a) correct (b) wrong
13. 13.Check with nines: 772 + 560 = 1332. Correct or wrong? (a) wrong (b) correct
14. 14.Check with nines: 98 × 61 = 5983. Correct or wrong? (a) wrong (b) correct
15. 15.Check with nines: 908 + 696 = 1603. Correct or wrong? (a) wrong (b) correct
16. 16.Check with nines: 300 + 580 = 872. Correct or wrong? (a) correct (b) wrong
17. 17.Check with nines: 32 × 54 = 1728. Correct or wrong? (a) wrong (b) correct
18. 18.Check with nines: 588 + 129 = 717. Correct or wrong? (a) wrong (b) correct
19. 19.Check with nines: 79 × 53 = 4187. Correct or wrong? (a) correct (b) wrong
20. 20.Check with nines: 29 × 22 = 646. Correct or wrong? (a) correct (b) wrong
21. 21.Check with nines: 28 × 45 = 1260. Correct or wrong? (a) wrong (b) correct
22. 22.Check with nines: 939 + 501 = 1444. Correct or wrong? (a) wrong (b) correct
23. 23.Check with nines: 19 × 26 = 498. Correct or wrong? (a) wrong (b) correct
24. 24.Check with nines: 75 × 58 = 4350. Correct or wrong? (a) correct (b) wrong
25. 25.Check with nines: 455 + 381 = 835. Correct or wrong? (a) correct (b) wrong
26. 26.Check with nines: 840 + 837 = 1677. Correct or wrong? (a) wrong (b) correct
27. 27.Check with nines: 49 × 57 = 2793. Correct or wrong? (a) wrong (b) correct
28. 28.Check with nines: 99 × 58 = 5734. Correct or wrong? (a) correct (b) wrong
29. 29.Check with nines: 548 + 897 = 1443. Correct or wrong? (a) correct (b) wrong
30. 30.Check with nines: 213 + 971 = 1182. Correct or wrong? (a) wrong (b) correct
31. 31.Check with nines: 13 × 29 = 377. Correct or wrong? (a) wrong (b) correct
32. 32.Check with nines: 218 + 135 = 352. Correct or wrong? (a) correct (b) wrong
33. 33.Check with nines: 548 + 806 = 1354. Correct or wrong? (a) correct (b) wrong
34. 34.Check with nines: 171 + 637 = 812. Correct or wrong? (a) correct (b) wrong
35. 35.Check with nines: 194 + 300 = 494. Correct or wrong? (a) wrong (b) correct
36. 36.Check with nines: 914 + 440 = 1353. Correct or wrong? (a) correct (b) wrong
37. 37.Check with nines: 648 + 524 = 1172. Correct or wrong? (a) correct (b) wrong
38. 38.Check with nines: 12 × 94 = 1123. Correct or wrong? (a) correct (b) wrong
39. 39.Check with nines: 23 × 49 = 1127. Correct or wrong? (a) correct (b) wrong
40. 40.Check with nines: 80 × 73 = 5840. Correct or wrong? (a) correct (b) wrong

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