1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 251 · 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 6. What is that number?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
3. 3.891 + 198 =
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
5. 5.198 + 891 =
6. 6.Do the 1089 trick with 259: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Take 480. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.693 + 396 =
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
10. 10.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Take 700. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Do the 1089 trick with 230: 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 8. What is that number?
14. 14.Take 720. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Take 712. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 917. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Do the 1089 trick with 761: reverse and subtract, then reverse that answer and add. What do you get?
18. 18.495 + 594 =
19. 19.Do the 1089 trick with 219: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
21. 21.Do the 1089 trick with 224: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
23. 23.396 + 693 =
24. 24.792 + 297 =
25. 25.Take 339. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Take 762. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.297 + 792 =
28. 28.Do the 1089 trick with 673: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 943. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 709. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 743: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 800: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 561. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 885: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 246. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 420: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Do the 1089 trick with 319: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 870. Reverse its digits and take the smaller number away from the bigger one. What do you get?

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks