Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 126 · 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. 1.122 − 98 =
2. 2.189 − 96 =
3. 3.580 − 37 =
4. 4.242 − 56 =
5. 5.408 − 28 =
6. 6.244 − 26 =
7. 7.168 − 36 =
8. 8.393 − 66 =
9. 9.60 − 16 =
10. 10.280 − 97 =
11. 11.567 − 26 =
12. 12.463 − 37 =
13. 13.303 − 38 =
14. 14.85 − 38 =
15. 15.152 − 56 =
16. 16.153 − 98 =
17. 17.257 − 98 =
18. 18.271 − 57 =
19. 19.176 − 16 =
20. 20.53 − 27 =
21. 21.117 − 58 =
22. 22.404 − 79 =
23. 23.221 − 67 =
24. 24.178 − 97 =
25. 25.267 − 67 =
26. 26.557 − 97 =
27. 27.549 − 17 =
28. 28.330 − 47 =
29. 29.134 − 37 =
30. 30.270 − 16 =
31. 31.191 − 58 =
32. 32.167 − 39 =
33. 33.485 − 77 =
34. 34.553 − 37 =
35. 35.249 − 56 =
36. 36.390 − 86 =
37. 37.292 − 17 =
38. 38.345 − 96 =
39. 39.536 − 76 =
40. 40.178 − 26 =

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