1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 410 · 40 questions

The trick (Reverse and subtract): Reverse the number and take the smaller number away from the bigger one. The answer is always one of 198, 297, 396, 495, 594, 693, 792, 891: middle digit 9, first and last digits adding to 9. Reverse that answer and add: you always get 1089.

1. 1.594 + 495 =
2. 2.Do the 1089 trick with 204: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.Do the 1089 trick with 399: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.Do the 1089 trick with 801: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.495 + 594 =
6. 6.Do the 1089 trick with 782: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Take 409. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 694. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Take 477. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Do the 1089 trick with 934: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
12. 12.Do the 1089 trick with 970: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Take 390. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
15. 15.Take 428. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.297 + 792 =
17. 17.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
18. 18.Take 825. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.198 + 891 =
20. 20.Take 770. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 488: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
23. 23.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Take 650. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 220. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 991: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
28. 28.Do the 1089 trick with 570: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
30. 30.891 + 198 =
31. 31.Do the 1089 trick with 821: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 254: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
34. 34.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 925. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 209. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Do the 1089 trick with 436: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
39. 39.396 + 693 =
40. 40.Do the 1089 trick with 790: reverse and subtract, then reverse that answer and add. What do you get?

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