Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 215 · 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. 1.93 − 57 =
2. 2.324 − 66 =
3. 3.533 − 18 =
4. 4.482 − 69 =
5. 5.203 − 98 =
6. 6.249 − 97 =
7. 7.441 − 86 =
8. 8.509 − 26 =
9. 9.523 − 39 =
10. 10.488 − 46 =
11. 11.170 − 38 =
12. 12.285 − 88 =
13. 13.115 − 46 =
14. 14.87 − 17 =
15. 15.180 − 66 =
16. 16.372 − 68 =
17. 17.572 − 36 =
18. 18.249 − 39 =
19. 19.313 − 59 =
20. 20.598 − 56 =
21. 21.464 − 37 =
22. 22.401 − 28 =
23. 23.341 − 48 =
24. 24.506 − 56 =
25. 25.511 − 49 =
26. 26.240 − 26 =
27. 27.320 − 88 =
28. 28.237 − 17 =
29. 29.553 − 57 =
30. 30.594 − 97 =
31. 31.116 − 57 =
32. 32.571 − 19 =
33. 33.418 − 36 =
34. 34.529 − 37 =
35. 35.384 − 39 =
36. 36.111 − 76 =
37. 37.131 − 96 =
38. 38.285 − 56 =
39. 39.153 − 77 =
40. 40.511 − 36 =

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