1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 418 · 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 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.Take 155. Reverse its digits and take the smaller number away from the bigger one. What do you get?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
5. 5.Take 860. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.594 + 495 =
7. 7.Take 698. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 800. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.Take 866. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.891 + 198 =
11. 11.Do the 1089 trick with 970: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 199. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.495 + 594 =
14. 14.297 + 792 =
15. 15.396 + 693 =
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
17. 17.Take 799. 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.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Do the 1089 trick with 668: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Take 953. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 613. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.693 + 396 =
24. 24.Take 207. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Take 411. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Do the 1089 trick with 770: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Take 803. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 411: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 841: reverse and subtract, then reverse that answer and add. 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.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
32. 32.Do the 1089 trick with 996: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Take 670. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 139: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 143. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 580. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
38. 38.Take 900. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 460: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 214: reverse and subtract, then reverse that answer and add. What do you get?

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