1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 503 · 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.Take 753. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.891 + 198 =
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
4. 4.Do the 1089 trick with 982: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Do the 1089 trick with 107: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.Do the 1089 trick with 763: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.297 + 792 =
8. 8.594 + 495 =
9. 9.495 + 594 =
10. 10.Do the 1089 trick with 227: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Do the 1089 trick with 290: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 279. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 163. 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 4. What is that number?
15. 15.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
16. 16.Take 259. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Do the 1089 trick with 482: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.Take 780. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Do the 1089 trick with 486: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Do the 1089 trick with 942: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Do the 1089 trick with 759: 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.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
25. 25.Do the 1089 trick with 741: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.693 + 396 =
27. 27.Do the 1089 trick with 698: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Take 880. Reverse its digits and take the smaller number away from the bigger one. 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.Take 220. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Take 945. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 662. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.396 + 693 =
34. 34.Take 956. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 196. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 991. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 830. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 623: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Do the 1089 trick with 412: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 509: reverse and subtract, then reverse that answer and add. What do you get?

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