Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 648 · 40 questions

The fast method (Shift both): How much makes the second number round? 68 needs 2 to make 70. Add that amount to BOTH numbers. Take away the round number.

1. 1.598 − 38 =
2. 2.587 − 58 =
3. 3.236 − 68 =
4. 4.138 − 39 =
5. 5.562 − 16 =
6. 6.495 − 69 =
7. 7.512 − 76 =
8. 8.384 − 98 =
9. 9.64 − 16 =
10. 10.335 − 87 =
11. 11.328 − 38 =
12. 12.501 − 16 =
13. 13.188 − 29 =
14. 14.227 − 48 =
15. 15.120 − 59 =
16. 16.114 − 96 =
17. 17.159 − 26 =
18. 18.534 − 48 =
19. 19.482 − 79 =
20. 20.441 − 77 =
21. 21.469 − 88 =
22. 22.470 − 77 =
23. 23.132 − 19 =
24. 24.211 − 18 =
25. 25.264 − 38 =
26. 26.135 − 76 =
27. 27.146 − 26 =
28. 28.162 − 66 =
29. 29.526 − 29 =
30. 30.307 − 69 =
31. 31.447 − 16 =
32. 32.327 − 37 =
33. 33.320 − 68 =
34. 34.181 − 96 =
35. 35.105 − 87 =
36. 36.259 − 76 =
37. 37.210 − 89 =
38. 38.430 − 67 =
39. 39.415 − 68 =
40. 40.146 − 38 =

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