Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 359 · 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. 1.593 − 89 =
2. 2.482 − 89 =
3. 3.188 − 27 =
4. 4.129 − 88 =
5. 5.320 − 67 =
6. 6.594 − 76 =
7. 7.195 − 97 =
8. 8.277 − 76 =
9. 9.197 − 19 =
10. 10.528 − 16 =
11. 11.269 − 58 =
12. 12.429 − 16 =
13. 13.156 − 56 =
14. 14.463 − 29 =
15. 15.187 − 47 =
16. 16.411 − 96 =
17. 17.463 − 26 =
18. 18.342 − 77 =
19. 19.102 − 17 =
20. 20.365 − 97 =
21. 21.428 − 89 =
22. 22.153 − 38 =
23. 23.441 − 19 =
24. 24.139 − 66 =
25. 25.488 − 78 =
26. 26.107 − 88 =
27. 27.177 − 86 =
28. 28.155 − 78 =
29. 29.203 − 49 =
30. 30.153 − 79 =
31. 31.463 − 68 =
32. 32.302 − 88 =
33. 33.121 − 17 =
34. 34.397 − 47 =
35. 35.464 − 26 =
36. 36.121 − 26 =
37. 37.405 − 78 =
38. 38.562 − 29 =
39. 39.226 − 96 =
40. 40.298 − 28 =

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