1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 895 · 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 6. What is that number?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
3. 3.594 + 495 =
4. 4.495 + 594 =
5. 5.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Do the 1089 trick with 690: reverse and subtract, then reverse that answer and add. What do you get?
8. 8.Do the 1089 trick with 830: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Do the 1089 trick with 265: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Do the 1089 trick with 751: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.297 + 792 =
12. 12.Take 411. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.891 + 198 =
14. 14.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 166: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Take 227. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 896. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
19. 19.198 + 891 =
20. 20.Take 614. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 733. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 593. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
24. 24.Take 289. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 512. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.396 + 693 =
27. 27.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
28. 28.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 588. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Take 437. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 461. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 436: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
35. 35.Take 710. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 521. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 199. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 660. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 147: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 178. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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