1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 911 · 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 7. What is that number?
2. 2.Do the 1089 trick with 662: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
4. 4.Do the 1089 trick with 460: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 368. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 169. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.198 + 891 =
8. 8.Do the 1089 trick with 513: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
10. 10.Take 801. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.Take 940. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 431: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Do the 1089 trick with 833: reverse and subtract, then reverse that answer and add. What do you get?
15. 15.Take 970. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 129. 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 2. What is that number?
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
20. 20.Take 850. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Do the 1089 trick with 500: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.396 + 693 =
23. 23.Do the 1089 trick with 153: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Do the 1089 trick with 770: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.Do the 1089 trick with 761: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 902: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Do the 1089 trick with 610: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Take 618. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.495 + 594 =
30. 30.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
31. 31.Take 779. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Do the 1089 trick with 397: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Do the 1089 trick with 920: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Do the 1089 trick with 590: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 834. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
37. 37.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
38. 38.792 + 297 =
39. 39.Do the 1089 trick with 947: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 640. 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