Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 86 · 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. 1.143 − 27 =
2. 2.203 − 47 =
3. 3.543 − 28 =
4. 4.172 − 87 =
5. 5.229 − 26 =
6. 6.453 − 58 =
7. 7.432 − 76 =
8. 8.217 − 36 =
9. 9.598 − 98 =
10. 10.99 − 97 =
11. 11.596 − 17 =
12. 12.307 − 69 =
13. 13.513 − 18 =
14. 14.219 − 48 =
15. 15.524 − 28 =
16. 16.404 − 69 =
17. 17.517 − 98 =
18. 18.94 − 86 =
19. 19.141 − 88 =
20. 20.406 − 76 =
21. 21.352 − 86 =
22. 22.421 − 97 =
23. 23.238 − 67 =
24. 24.107 − 36 =
25. 25.549 − 26 =
26. 26.244 − 37 =
27. 27.161 − 87 =
28. 28.88 − 28 =
29. 29.149 − 56 =
30. 30.208 − 26 =
31. 31.552 − 89 =
32. 32.157 − 78 =
33. 33.515 − 59 =
34. 34.75 − 26 =
35. 35.183 − 47 =
36. 36.413 − 97 =
37. 37.346 − 29 =
38. 38.146 − 77 =
39. 39.508 − 19 =
40. 40.242 − 28 =

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