1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 464 · 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 2. What is that number?
2. 2.693 + 396 =
3. 3.792 + 297 =
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
5. 5.Take 225. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 194: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Take 765. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Do the 1089 trick with 954: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.Do the 1089 trick with 472: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Do the 1089 trick with 951: 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 3. What is that number?
12. 12.Take 941. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.891 + 198 =
14. 14.Take 632. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
17. 17.Do the 1089 trick with 174: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.495 + 594 =
19. 19.594 + 495 =
20. 20.Take 866. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 159: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Take 380. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Take 701. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.198 + 891 =
25. 25.Do the 1089 trick with 411: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Take 911. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 912. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 569: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 510: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 508. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Do the 1089 trick with 370: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.396 + 693 =
34. 34.Take 184. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 176. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
37. 37.Take 266. 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 4. What is that number?
39. 39.Take 533. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?

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