1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 215 · 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 950: reverse and subtract, then reverse that answer and add. What do you get?
2. 2.297 + 792 =
3. 3.Do the 1089 trick with 732: reverse and subtract, then reverse that answer and add. What do you get?
4. 4.Do the 1089 trick with 831: reverse and subtract, then reverse that answer and add. What do you get?
5. 5.Take 972. Reverse its digits and take the smaller number away from the bigger one. What do you get?
6. 6.Do the 1089 trick with 541: reverse and subtract, then reverse that answer and add. What do you get?
7. 7.Do the 1089 trick with 398: 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 2. What is that number?
9. 9.Take 840. 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 1. What is that number?
11. 11.792 + 297 =
12. 12.In the 1089 trick, the subtraction gave a 3-digit number that starts with 3. What is that number?
13. 13.Do the 1089 trick with 993: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Take 710. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.495 + 594 =
16. 16.Take 730. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.Take 145. Reverse its digits and take the smaller number away from the bigger one. What do you get?
18. 18.Do the 1089 trick with 731: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.Take 379. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Take 950. Reverse its digits and take the smaller number away from the bigger one. What do you get?
21. 21.Take 577. Reverse its digits and take the smaller number away from the bigger one. What do you get?
22. 22.Take 480. Reverse its digits and take the smaller number away from the bigger one. What do you get?
23. 23.Do the 1089 trick with 489: reverse and subtract, then reverse that answer and add. What do you get?
24. 24.Do the 1089 trick with 468: reverse and subtract, then reverse that answer and add. What do you get?
25. 25.198 + 891 =
26. 26.693 + 396 =
27. 27.Do the 1089 trick with 561: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Do the 1089 trick with 137: reverse and subtract, then reverse that answer and add. What do you get?
29. 29.594 + 495 =
30. 30.Do the 1089 trick with 813: reverse and subtract, then reverse that answer and add. What do you get?
31. 31.Take 340. Reverse its digits and take the smaller number away from the bigger one. What do you get?
32. 32.Take 930. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Take 488. Reverse its digits and take the smaller number away from the bigger one. What do you get?
34. 34.Take 220. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.Do the 1089 trick with 659: reverse and subtract, then reverse that answer and add. What do you get?
36. 36.Take 905. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Do the 1089 trick with 490: reverse and subtract, then reverse that answer and add. What do you get?
38. 38.891 + 198 =
39. 39.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
40. 40.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?

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