Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 812 · 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. 1.122 − 68 =
2. 2.75 − 29 =
3. 3.273 − 36 =
4. 4.161 − 69 =
5. 5.57 − 17 =
6. 6.509 − 37 =
7. 7.516 − 17 =
8. 8.516 − 67 =
9. 9.415 − 88 =
10. 10.461 − 86 =
11. 11.457 − 57 =
12. 12.383 − 47 =
13. 13.183 − 69 =
14. 14.303 − 26 =
15. 15.340 − 98 =
16. 16.511 − 17 =
17. 17.193 − 56 =
18. 18.344 − 47 =
19. 19.148 − 87 =
20. 20.53 − 37 =
21. 21.128 − 18 =
22. 22.448 − 39 =
23. 23.367 − 79 =
24. 24.334 − 68 =
25. 25.318 − 48 =
26. 26.484 − 99 =
27. 27.595 − 97 =
28. 28.512 − 96 =
29. 29.478 − 18 =
30. 30.218 − 66 =
31. 31.229 − 87 =
32. 32.592 − 28 =
33. 33.523 − 76 =
34. 34.333 − 67 =
35. 35.239 − 58 =
36. 36.262 − 68 =
37. 37.329 − 17 =
38. 38.334 − 17 =
39. 39.489 − 96 =
40. 40.437 − 29 =

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