1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 910 · 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 8. What is that number?
2. 2.Do the 1089 trick with 983: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.495 + 594 =
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
5. 5.396 + 693 =
6. 6.Take 254. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.Take 903. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.198 + 891 =
9. 9.Do the 1089 trick with 299: reverse and subtract, then reverse that answer and add. What do you get?
10. 10.594 + 495 =
11. 11.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
12. 12.Do the 1089 trick with 115: reverse and subtract, then reverse that answer and add. What do you get?
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
14. 14.Take 790. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Take 198. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
17. 17.Take 513. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 310. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 961. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 710. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 381: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Do the 1089 trick with 416: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Take 300. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
25. 25.792 + 297 =
26. 26.Take 630. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.Take 974. Reverse its digits and take the smaller number away from the bigger one. What do you get?
28. 28.Do the 1089 trick with 940: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Do the 1089 trick with 196: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Do the 1089 trick with 176: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Do the 1089 trick with 501: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 890: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Take 688. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
35. 35.Take 174. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 184: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 189. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.297 + 792 =
39. 39.Take 825. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Take 159. Reverse its digits and take the smaller number away from the bigger one. What do you get?

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