1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 340 · 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. 1.495 + 594 =
2. 2.693 + 396 =
3. 3.Do the 1089 trick with 611: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
6. 6.594 + 495 =
7. 7.Take 481. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 335. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
10. 10.Do the 1089 trick with 368: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Take 315. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 217. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Take 860. 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 5. 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.Do the 1089 trick with 592: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.792 + 297 =
18. 18.Take 599. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Do the 1089 trick with 710: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Take 552. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 307. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Do the 1089 trick with 740: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.297 + 792 =
25. 25.Do the 1089 trick with 920: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 942: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 580. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.891 + 198 =
29. 29.Take 390. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
31. 31.Take 196. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 385. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 490: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 810. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.396 + 693 =
36. 36.Do the 1089 trick with 955: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 452. 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 7. What is that number?
39. 39.Take 790. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 901. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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