1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 288 · 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.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
2. 2.Take 801. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.198 + 891 =
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
5. 5.Do the 1089 trick with 450: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
7. 7.Take 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 700. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Take 258. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Do the 1089 trick with 890: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Do the 1089 trick with 785: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
14. 14.Take 740. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 300: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Do the 1089 trick with 683: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.Take 930. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.693 + 396 =
19. 19.Take 356. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 800: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Take 567. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 612. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.396 + 693 =
25. 25.Take 672. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Take 631. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 331. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 940: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 267: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.297 + 792 =
32. 32.Take 693. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Take 487. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 700: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 622. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 167: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 923. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
39. 39.792 + 297 =
40. 40.Take 558. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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