Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 220 · 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. 1.142 − 69 =
2. 2.134 − 98 =
3. 3.158 − 59 =
4. 4.487 − 96 =
5. 5.215 − 78 =
6. 6.497 − 19 =
7. 7.245 − 88 =
8. 8.559 − 26 =
9. 9.331 − 87 =
10. 10.78 − 26 =
11. 11.179 − 66 =
12. 12.551 − 69 =
13. 13.213 − 56 =
14. 14.417 − 27 =
15. 15.134 − 16 =
16. 16.242 − 96 =
17. 17.423 − 58 =
18. 18.262 − 77 =
19. 19.81 − 38 =
20. 20.344 − 18 =
21. 21.593 − 89 =
22. 22.162 − 86 =
23. 23.93 − 68 =
24. 24.574 − 67 =
25. 25.255 − 87 =
26. 26.465 − 49 =
27. 27.83 − 67 =
28. 28.479 − 47 =
29. 29.91 − 29 =
30. 30.265 − 39 =
31. 31.193 − 27 =
32. 32.387 − 68 =
33. 33.410 − 38 =
34. 34.114 − 57 =
35. 35.182 − 86 =
36. 36.509 − 56 =
37. 37.217 − 97 =
38. 38.271 − 36 =
39. 39.141 − 88 =
40. 40.156 − 77 =

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