1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 554 · 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 880: 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. 3.495 + 594 =
4. 4.891 + 198 =
5. 5.Do the 1089 trick with 600: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.Do the 1089 trick with 680: 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 4. What is that number?
8. 8.Take 981. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Do the 1089 trick with 360: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.Do the 1089 trick with 977: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Do the 1089 trick with 550: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Do the 1089 trick with 468: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.Do the 1089 trick with 446: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Take 476. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.297 + 792 =
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
17. 17.198 + 891 =
18. 18.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
20. 20.Do the 1089 trick with 429: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
22. 22.Do the 1089 trick with 912: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Take 745. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.Take 528. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
27. 27.Do the 1089 trick with 250: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Do the 1089 trick with 244: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 290: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.792 + 297 =
31. 31.Do the 1089 trick with 610: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 951: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 338: 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 8. What is that number?
35. 35.Take 912. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 220: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 259. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 402: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Do the 1089 trick with 980: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 350: reverse and subtract, then reverse that answer and add. What do you get?

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