1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 837 · 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.Take 530. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.Take 971. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
4. 4.Do the 1089 trick with 432: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 520. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Take 431. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
8. 8.792 + 297 =
9. 9.Take 135. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
11. 11.Take 239. Reverse its digits and take the smaller number away from the bigger one. What do you get?
12. 12.198 + 891 =
13. 13.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
15. 15.495 + 594 =
16. 16.Do the 1089 trick with 910: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.693 + 396 =
18. 18.Take 599. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Take 380. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
21. 21.Do the 1089 trick with 508: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.Take 143. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Do the 1089 trick with 490: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.396 + 693 =
25. 25.Take 551. Reverse its digits and take the smaller number away from the bigger one. What do you get?
26. 26.Take 690. Reverse its digits and take the smaller number away from the bigger one. What do you get?
27. 27.594 + 495 =
28. 28.Take 417. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Do the 1089 trick with 380: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.297 + 792 =
31. 31.Do the 1089 trick with 210: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.891 + 198 =
33. 33.Take 911. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 870: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Do the 1089 trick with 489: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Do the 1089 trick with 940: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Take 496. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Do the 1089 trick with 769: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
40. 40.Do the 1089 trick with 519: 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