Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 258 · 40 questions

The trick (Split and double): Split the number into tens and ones: 37 = 30 + 7. Double each part (30 → 60, 7 → 14) — or halve each part. Add the two answers: 60 + 14 = 74.

1. 1.Double 14 =
2. 2.Double 99 =
3. 3.Half of 114 =
4. 4.Half of 94 =
5. 5.Double 61 =
6. 6.Half of 58 =
7. 7.Half of 194 =
8. 8.Double 51 =
9. 9.Double 31 =
10. 10.Half of 52 =
11. 11.Double 49 =
12. 12.Half of 84 =
13. 13.Half of 42 =
14. 14.Half of 124 =
15. 15.Double 35 =
16. 16.Double 55 =
17. 17.Double 24 =
18. 18.Double 93 =
19. 19.Double 97 =
20. 20.Half of 24 =
21. 21.Half of 128 =
22. 22.Double 81 =
23. 23.Double 22 =
24. 24.Half of 26 =
25. 25.Double 82 =
26. 26.Double 52 =
27. 27.Half of 184 =
28. 28.Half of 172 =
29. 29.Double 68 =
30. 30.Double 46 =
31. 31.Half of 134 =
32. 32.Double 89 =
33. 33.Double 94 =
34. 34.Half of 174 =
35. 35.Half of 132 =
36. 36.Half of 22 =
37. 37.Double 71 =
38. 38.Double 19 =
39. 39.Half of 46 =
40. 40.Half of 188 =

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