1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 769 · 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 4. What is that number?
2. 2.Take 990. Reverse its digits and take the smaller number away from the bigger one. What do you get?
3. 3.495 + 594 =
4. 4.Take 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
6. 6.Do the 1089 trick with 430: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.891 + 198 =
8. 8.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.198 + 891 =
10. 10.Do the 1089 trick with 993: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.792 + 297 =
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
13. 13.Take 107. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
15. 15.Take 852. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 863. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 298. 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.Do the 1089 trick with 380: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.Do the 1089 trick with 840: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Take 543. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 539. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.693 + 396 =
24. 24.Do the 1089 trick with 723: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.396 + 693 =
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
27. 27.Do the 1089 trick with 370: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Take 351. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 531. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.Take 410. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Do the 1089 trick with 950: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 720. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 630: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 174. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 123. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Do the 1089 trick with 477: reverse and subtract, then reverse that answer and add. What do you get?
37. 37.Do the 1089 trick with 784: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.Take 972. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Take 855. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?

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