Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 619 · 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. 1.556 − 18 =
2. 2.265 − 39 =
3. 3.251 − 76 =
4. 4.401 − 26 =
5. 5.91 − 87 =
6. 6.102 − 38 =
7. 7.117 − 36 =
8. 8.470 − 46 =
9. 9.410 − 37 =
10. 10.420 − 87 =
11. 11.189 − 37 =
12. 12.550 − 56 =
13. 13.61 − 39 =
14. 14.555 − 56 =
15. 15.264 − 76 =
16. 16.561 − 78 =
17. 17.187 − 87 =
18. 18.160 − 58 =
19. 19.419 − 17 =
20. 20.157 − 78 =
21. 21.403 − 96 =
22. 22.124 − 96 =
23. 23.95 − 48 =
24. 24.495 − 56 =
25. 25.514 − 89 =
26. 26.167 − 66 =
27. 27.139 − 69 =
28. 28.202 − 66 =
29. 29.203 − 19 =
30. 30.572 − 28 =
31. 31.329 − 98 =
32. 32.551 − 39 =
33. 33.474 − 17 =
34. 34.251 − 28 =
35. 35.306 − 39 =
36. 36.262 − 89 =
37. 37.356 − 57 =
38. 38.531 − 38 =
39. 39.373 − 46 =
40. 40.457 − 16 =

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