Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 99 · 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. 1.405 − 59 =
2. 2.127 − 17 =
3. 3.170 − 26 =
4. 4.150 − 79 =
5. 5.165 − 47 =
6. 6.201 − 37 =
7. 7.518 − 29 =
8. 8.293 − 26 =
9. 9.263 − 77 =
10. 10.444 − 36 =
11. 11.586 − 27 =
12. 12.160 − 27 =
13. 13.90 − 39 =
14. 14.128 − 38 =
15. 15.580 − 48 =
16. 16.147 − 16 =
17. 17.166 − 67 =
18. 18.436 − 87 =
19. 19.174 − 78 =
20. 20.555 − 59 =
21. 21.575 − 17 =
22. 22.445 − 18 =
23. 23.515 − 26 =
24. 24.490 − 26 =
25. 25.530 − 17 =
26. 26.530 − 77 =
27. 27.450 − 98 =
28. 28.124 − 16 =
29. 29.126 − 26 =
30. 30.318 − 16 =
31. 31.464 − 69 =
32. 32.412 − 17 =
33. 33.171 − 97 =
34. 34.97 − 28 =
35. 35.400 − 29 =
36. 36.189 − 87 =
37. 37.76 − 26 =
38. 38.178 − 96 =
39. 39.389 − 96 =
40. 40.389 − 48 =

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