Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 824 · 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. 1.79 − 66 =
2. 2.528 − 69 =
3. 3.519 − 37 =
4. 4.533 − 27 =
5. 5.588 − 36 =
6. 6.290 − 49 =
7. 7.440 − 29 =
8. 8.59 − 39 =
9. 9.213 − 86 =
10. 10.334 − 87 =
11. 11.210 − 49 =
12. 12.366 − 19 =
13. 13.444 − 99 =
14. 14.544 − 36 =
15. 15.166 − 46 =
16. 16.504 − 26 =
17. 17.84 − 77 =
18. 18.509 − 98 =
19. 19.548 − 36 =
20. 20.153 − 39 =
21. 21.421 − 98 =
22. 22.278 − 37 =
23. 23.62 − 19 =
24. 24.88 − 16 =
25. 25.378 − 78 =
26. 26.72 − 47 =
27. 27.389 − 26 =
28. 28.414 − 67 =
29. 29.490 − 37 =
30. 30.282 − 66 =
31. 31.124 − 88 =
32. 32.229 − 86 =
33. 33.315 − 48 =
34. 34.582 − 17 =
35. 35.166 − 67 =
36. 36.151 − 56 =
37. 37.197 − 46 =
38. 38.149 − 78 =
39. 39.155 − 19 =
40. 40.394 − 98 =

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