Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 180 · 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. 1.584 − 77 =
2. 2.423 − 28 =
3. 3.451 − 66 =
4. 4.486 − 67 =
5. 5.546 − 56 =
6. 6.363 − 26 =
7. 7.113 − 17 =
8. 8.195 − 18 =
9. 9.388 − 16 =
10. 10.157 − 58 =
11. 11.416 − 28 =
12. 12.76 − 29 =
13. 13.168 − 89 =
14. 14.253 − 68 =
15. 15.314 − 28 =
16. 16.213 − 38 =
17. 17.568 − 88 =
18. 18.477 − 96 =
19. 19.385 − 17 =
20. 20.453 − 66 =
21. 21.528 − 76 =
22. 22.322 − 99 =
23. 23.153 − 47 =
24. 24.153 − 87 =
25. 25.218 − 68 =
26. 26.598 − 38 =
27. 27.82 − 47 =
28. 28.148 − 89 =
29. 29.267 − 79 =
30. 30.296 − 56 =
31. 31.238 − 19 =
32. 32.247 − 48 =
33. 33.337 − 47 =
34. 34.569 − 26 =
35. 35.135 − 17 =
36. 36.214 − 96 =
37. 37.260 − 88 =
38. 38.179 − 26 =
39. 39.177 − 78 =
40. 40.594 − 36 =

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