Check Your Answers Worksheet

Maths tricks trick 22: Last-digit detective · Set 746 · 40 questions

The trick (Last digits only): Multiply (or add) only the last digits of the two numbers. The last digit of that result is the last digit the answer must have. Different last digit → wrong for sure. Same last digit → it passes the check (work it out in full to be certain).

1. 1.Last-digit check: is 211 + 967 = 1176 right or wrong? (a) Wrong (b) Right
2. 2.Last-digit check: is 61 × 25 = 1525 right or wrong? (a) Wrong (b) Right
3. 3.Last-digit check: is 160 + 588 = 748 right or wrong? (a) Wrong (b) Right
4. 4.Last-digit check: is 36 × 39 = 1404 right or wrong? (a) Right (b) Wrong
5. 5.Last-digit check: is 681 + 247 = 928 right or wrong? (a) Right (b) Wrong
6. 6.Last-digit check: is 58 × 34 = 1981 right or wrong? (a) Right (b) Wrong
7. 7.Last-digit check: is 368 + 367 = 736 right or wrong? (a) Right (b) Wrong
8. 8.Last-digit check: is 37 × 80 = 2958 right or wrong? (a) Wrong (b) Right
9. 9.Last-digit check: is 20 × 70 = 1391 right or wrong? (a) Right (b) Wrong
10. 10.Last-digit check: is 58 × 73 = 4234 right or wrong? (a) Wrong (b) Right
11. 11.Last-digit check: is 358 + 360 = 713 right or wrong? (a) Right (b) Wrong
12. 12.Last-digit check: is 93 × 39 = 3629 right or wrong? (a) Wrong (b) Right
13. 13.Last-digit check: is 91 × 98 = 8918 right or wrong? (a) Right (b) Wrong
14. 14.Last-digit check: is 22 × 79 = 1733 right or wrong? (a) Right (b) Wrong
15. 15.Last-digit check: is 295 + 709 = 1004 right or wrong? (a) Right (b) Wrong
16. 16.Last-digit check: is 30 × 80 = 2403 right or wrong? (a) Right (b) Wrong
17. 17.Last-digit check: is 391 + 583 = 974 right or wrong? (a) Right (b) Wrong
18. 18.Last-digit check: is 30 × 26 = 780 right or wrong? (a) Right (b) Wrong
19. 19.Last-digit check: is 20 × 73 = 1460 right or wrong? (a) Right (b) Wrong
20. 20.Last-digit check: is 710 + 704 = 1414 right or wrong? (a) Wrong (b) Right
21. 21.Last-digit check: is 51 × 97 = 4947 right or wrong? (a) Right (b) Wrong
22. 22.Last-digit check: is 27 × 87 = 2343 right or wrong? (a) Wrong (b) Right
23. 23.Last-digit check: is 48 × 65 = 3118 right or wrong? (a) Right (b) Wrong
24. 24.Last-digit check: is 34 × 14 = 476 right or wrong? (a) Wrong (b) Right
25. 25.Last-digit check: is 416 + 877 = 1289 right or wrong? (a) Right (b) Wrong
26. 26.Last-digit check: is 62 × 56 = 3477 right or wrong? (a) Right (b) Wrong
27. 27.Last-digit check: is 360 + 827 = 1186 right or wrong? (a) Wrong (b) Right
28. 28.Last-digit check: is 58 × 32 = 1856 right or wrong? (a) Right (b) Wrong
29. 29.Last-digit check: is 63 × 97 = 6111 right or wrong? (a) Wrong (b) Right
30. 30.Last-digit check: is 196 + 435 = 632 right or wrong? (a) Right (b) Wrong
31. 31.Last-digit check: is 94 × 28 = 2623 right or wrong? (a) Right (b) Wrong
32. 32.Last-digit check: is 24 × 29 = 696 right or wrong? (a) Right (b) Wrong
33. 33.Last-digit check: is 16 × 42 = 676 right or wrong? (a) Right (b) Wrong
34. 34.Last-digit check: is 227 + 951 = 1175 right or wrong? (a) Right (b) Wrong
35. 35.Last-digit check: is 56 × 23 = 1290 right or wrong? (a) Right (b) Wrong
36. 36.Last-digit check: is 43 × 24 = 1038 right or wrong? (a) Right (b) Wrong
37. 37.Last-digit check: is 59 × 18 = 1062 right or wrong? (a) Right (b) Wrong
38. 38.Last-digit check: is 656 + 761 = 1422 right or wrong? (a) Wrong (b) Right
39. 39.Last-digit check: is 27 × 35 = 947 right or wrong? (a) Right (b) Wrong
40. 40.Last-digit check: is 647 + 937 = 1593 right or wrong? (a) Right (b) Wrong

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