1089 Trick Worksheet

Maths tricks trick 7: The 1089 magic trick · Set 944 · 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. 1.297 + 792 =
2. 2.Take 604. 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 5. What is that number?
4. 4.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
5. 5.396 + 693 =
6. 6.198 + 891 =
7. 7.Do the 1089 trick with 571: reverse and subtract, then reverse that answer and add. What do you get?
8. 8.Do the 1089 trick with 407: reverse and subtract, then reverse that answer and add. What do you get?
9. 9.594 + 495 =
10. 10.693 + 396 =
11. 11.Do the 1089 trick with 800: reverse and subtract, then reverse that answer and add. What do you get?
12. 12.Take 628. Reverse its digits and take the smaller number away from the bigger one. What do you get?
13. 13.Do the 1089 trick with 590: reverse and subtract, then reverse that answer and add. What do you get?
14. 14.Take 960. Reverse its digits and take the smaller number away from the bigger one. What do you get?
15. 15.Take 427. Reverse its digits and take the smaller number away from the bigger one. What do you get?
16. 16.Take 129. Reverse its digits and take the smaller number away from the bigger one. What do you get?
17. 17.In the 1089 trick, the subtraction gave a 3-digit number that starts with 4. What is that number?
18. 18.Do the 1089 trick with 996: reverse and subtract, then reverse that answer and add. What do you get?
19. 19.Take 117. Reverse its digits and take the smaller number away from the bigger one. What do you get?
20. 20.Do the 1089 trick with 328: reverse and subtract, then reverse that answer and add. What do you get?
21. 21.Do the 1089 trick with 230: reverse and subtract, then reverse that answer and add. What do you get?
22. 22.792 + 297 =
23. 23.In the 1089 trick, the subtraction gave a 3-digit number that starts with 8. What is that number?
24. 24.Take 491. Reverse its digits and take the smaller number away from the bigger one. What do you get?
25. 25.891 + 198 =
26. 26.In the 1089 trick, the subtraction gave a 3-digit number that starts with 7. What is that number?
27. 27.Do the 1089 trick with 801: reverse and subtract, then reverse that answer and add. What do you get?
28. 28.Take 941. Reverse its digits and take the smaller number away from the bigger one. What do you get?
29. 29.Do the 1089 trick with 276: reverse and subtract, then reverse that answer and add. What do you get?
30. 30.Take 663. Reverse its digits and take the smaller number away from the bigger one. What do you get?
31. 31.Do the 1089 trick with 299: reverse and subtract, then reverse that answer and add. What do you get?
32. 32.Take 275. Reverse its digits and take the smaller number away from the bigger one. What do you get?
33. 33.Do the 1089 trick with 966: reverse and subtract, then reverse that answer and add. What do you get?
34. 34.Take 638. Reverse its digits and take the smaller number away from the bigger one. What do you get?
35. 35.In the 1089 trick, the subtraction gave a 3-digit number that starts with 6. What is that number?
36. 36.Take 890. Reverse its digits and take the smaller number away from the bigger one. What do you get?
37. 37.Take 753. Reverse its digits and take the smaller number away from the bigger one. What do you get?
38. 38.Take 650. Reverse its digits and take the smaller number away from the bigger one. What do you get?
39. 39.Do the 1089 trick with 459: reverse and subtract, then reverse that answer and add. What do you get?
40. 40.Do the 1089 trick with 772: reverse and subtract, then reverse that answer and add. What do you get?

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