1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 729 · 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 975. Reverse its digits and take the smaller number away from the bigger one. What do you get?
2. 2.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
3. 3.Do the 1089 trick with 480: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.297 + 792 =
5. 5.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
6. 6.Take 126. Reverse its digits and take the smaller number away from the bigger one. What do you get?
7. 7.Take 812. Reverse its digits and take the smaller number away from the bigger one. What do you get?
8. 8.Take 448. Reverse its digits and take the smaller number away from the bigger one. What do you get?
9. 9.In the 1089 trick, the subtraction gave a 3-digit number that starts with 5. What is that number?
10. 10.Do the 1089 trick with 781: reverse and subtract, then reverse that answer and add. What do you get?
11. 11.Do the 1089 trick with 326: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
13. 13.Take 980. Reverse its digits and take the smaller number away from the bigger one. What do you get?
14. 14.Take 583. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Do the 1089 trick with 890: reverse and subtract, then reverse that answer and add. What do you get?
16. 16.Take 880. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 418. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Take 824. Reverse its digits and take the smaller number away from the bigger one. What do you get?
19. 19.Do the 1089 trick with 227: reverse and subtract, then reverse that answer and add. What do you get?
20. 20.In the 1089 trick, the subtraction gave a 3-digit number that starts with 2. What is that number?
21. 21.Take 402. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Do the 1089 trick with 860: reverse and subtract, then reverse that answer and add. What do you get?
23. 23.198 + 891 =
24. 24.594 + 495 =
25. 25.Do the 1089 trick with 970: reverse and subtract, then reverse that answer and add. What do you get?
26. 26.Do the 1089 trick with 329: reverse and subtract, then reverse that answer and add. What do you get?
27. 27.Do the 1089 trick with 870: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Take 830. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Take 166. 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 8. What is that number?
31. 31.396 + 693 =
32. 32.Take 326. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 841: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 740. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Take 361. Reverse its digits and take the smaller number away from the bigger one. What do you get?
36. 36.Take 470. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.891 + 198 =
38. 38.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
39. 39.Take 490. Reverse its digits and take the smaller number away from the bigger one. What do you get?
40. 40.Do the 1089 trick with 511: 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