1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 937 · 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. 1.693 + 396 =
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
3. 3.Do the 1089 trick with 124: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.198 + 891 =
5. 5.Do the 1089 trick with 997: reverse and subtract, then reverse that answer and add. What do you get?
6. 6.Do the 1089 trick with 149: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
8. 8.Do the 1089 trick with 761: 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.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
11. 11.396 + 693 =
12. 12.Take 153. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 663: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Take 582. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 911: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 158. 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 1. What is that number?
19. 19.297 + 792 =
20. 20.Do the 1089 trick with 640: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.891 + 198 =
22. 22.Take 803. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.495 + 594 =
24. 24.Take 660. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.Do the 1089 trick with 882: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
27. 27.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
28. 28.Take 789. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 408. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Do the 1089 trick with 361: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Do the 1089 trick with 709: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Do the 1089 trick with 688: reverse and subtract, then reverse that answer and add. What do you get?
33. 33.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 355. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 821. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 591. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Do the 1089 trick with 118: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 790. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 613: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 146: reverse and subtract, then reverse that answer and add. What do you get?

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