Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 237 · 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. 1.315 − 59 =
2. 2.335 − 59 =
3. 3.249 − 77 =
4. 4.346 − 68 =
5. 5.591 − 78 =
6. 6.538 − 27 =
7. 7.234 − 19 =
8. 8.91 − 19 =
9. 9.370 − 77 =
10. 10.223 − 28 =
11. 11.145 − 47 =
12. 12.194 − 98 =
13. 13.90 − 36 =
14. 14.276 − 89 =
15. 15.236 − 69 =
16. 16.307 − 18 =
17. 17.263 − 49 =
18. 18.334 − 29 =
19. 19.327 − 29 =
20. 20.320 − 69 =
21. 21.245 − 59 =
22. 22.501 − 76 =
23. 23.414 − 19 =
24. 24.485 − 46 =
25. 25.558 − 16 =
26. 26.590 − 29 =
27. 27.213 − 49 =
28. 28.427 − 56 =
29. 29.567 − 69 =
30. 30.235 − 49 =
31. 31.459 − 19 =
32. 32.329 − 37 =
33. 33.324 − 28 =
34. 34.544 − 39 =
35. 35.198 − 86 =
36. 36.151 − 56 =
37. 37.350 − 17 =
38. 38.298 − 46 =
39. 39.427 − 68 =
40. 40.550 − 57 =

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