Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 601 · 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. 1.303 − 88 =
2. 2.462 − 46 =
3. 3.558 − 59 =
4. 4.356 − 29 =
5. 5.594 − 39 =
6. 6.378 − 59 =
7. 7.563 − 79 =
8. 8.446 − 17 =
9. 9.485 − 19 =
10. 10.112 − 87 =
11. 11.576 − 17 =
12. 12.95 − 88 =
13. 13.326 − 27 =
14. 14.499 − 68 =
15. 15.57 − 26 =
16. 16.427 − 28 =
17. 17.262 − 39 =
18. 18.296 − 58 =
19. 19.458 − 39 =
20. 20.494 − 99 =
21. 21.235 − 87 =
22. 22.161 − 28 =
23. 23.539 − 36 =
24. 24.177 − 87 =
25. 25.401 − 17 =
26. 26.101 − 89 =
27. 27.91 − 89 =
28. 28.259 − 99 =
29. 29.104 − 76 =
30. 30.590 − 68 =
31. 31.137 − 38 =
32. 32.325 − 96 =
33. 33.242 − 27 =
34. 34.154 − 76 =
35. 35.257 − 29 =
36. 36.430 − 77 =
37. 37.272 − 27 =
38. 38.326 − 28 =
39. 39.459 − 29 =
40. 40.115 − 27 =

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