Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 587 · 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. 1.514 − 36 =
2. 2.104 − 87 =
3. 3.507 − 78 =
4. 4.515 − 99 =
5. 5.94 − 18 =
6. 6.345 − 36 =
7. 7.589 − 18 =
8. 8.154 − 16 =
9. 9.287 − 49 =
10. 10.267 − 57 =
11. 11.210 − 99 =
12. 12.182 − 28 =
13. 13.455 − 96 =
14. 14.237 − 77 =
15. 15.550 − 37 =
16. 16.547 − 79 =
17. 17.309 − 16 =
18. 18.215 − 39 =
19. 19.269 − 87 =
20. 20.140 − 29 =
21. 21.537 − 17 =
22. 22.217 − 26 =
23. 23.322 − 99 =
24. 24.521 − 98 =
25. 25.175 − 47 =
26. 26.539 − 16 =
27. 27.161 − 36 =
28. 28.210 − 48 =
29. 29.577 − 18 =
30. 30.364 − 96 =
31. 31.364 − 46 =
32. 32.199 − 57 =
33. 33.563 − 86 =
34. 34.224 − 49 =
35. 35.126 − 26 =
36. 36.108 − 88 =
37. 37.338 − 47 =
38. 38.280 − 66 =
39. 39.548 − 77 =
40. 40.240 − 38 =

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