1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 334 · 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.Do the 1089 trick with 852: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
3. 3.Do the 1089 trick with 260: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
5. 5.495 + 594 =
6. 6.Do the 1089 trick with 927: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
8. 8.Do the 1089 trick with 790: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
10. 10.297 + 792 =
11. 11.Do the 1089 trick with 976: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.198 + 891 =
13. 13.Take 846. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Do the 1089 trick with 810: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Take 264. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Do the 1089 trick with 937: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 119. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Do the 1089 trick with 941: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.Do the 1089 trick with 561: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Take 568. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 194: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Do the 1089 trick with 339: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
24. 24.Do the 1089 trick with 932: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Take 732. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Take 461. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Take 104. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 755. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.396 + 693 =
31. 31.891 + 198 =
32. 32.Do the 1089 trick with 621: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Take 670. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 684: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.792 + 297 =
36. 36.Do the 1089 trick with 740: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 753. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 109: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
40. 40.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?

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