1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 995 · 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.Do the 1089 trick with 920: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.Do the 1089 trick with 542: reverse and subtract, then reverse that answer and add. What do you get?
3. 3.693 + 396 =
4. 4.Take 920. Reverse its digits and take the smaller number away from the bigger one. What do you get?
5. 5.792 + 297 =
6. 6.594 + 495 =
7. 7.Do the 1089 trick with 439: reverse and subtract, then reverse that answer and add. What do you get?
8. 8.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
9. 9.Take 934. Reverse its digits and take the smaller number away from the bigger one. What do you get?
10. 10.Take 134. Reverse its digits and take the smaller number away from the bigger one. What do you get?
11. 11.891 + 198 =
12. 12.Take 972. Reverse its digits and take the smaller number away from the bigger one. 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 820. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.198 + 891 =
16. 16.Do the 1089 trick with 169: reverse and subtract, then reverse that answer and add. What do you get?
17. 17.396 + 693 =
18. 18.495 + 594 =
19. 19.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
20. 20.Take 904. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 872. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Do the 1089 trick with 507: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.Take 410. Reverse its digits and take the smaller number away from the bigger one. What do you get?
24. 24.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
25. 25.297 + 792 =
26. 26.Do the 1089 trick with 731: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Do the 1089 trick with 984: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
29. 29.Take 910. Reverse its digits and take the smaller number away from the bigger one. What do you get?
30. 30.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
31. 31.Do the 1089 trick with 705: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 883. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Take 371. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Do the 1089 trick with 155: reverse and subtract, then reverse that answer and add. What do you get?
35. 35.Take 835. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 760. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
38. 38.Do the 1089 trick with 329: reverse and subtract, then reverse that answer and add. What do you get?
39. 39.Do the 1089 trick with 168: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Take 890. 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