Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 417 · 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. 1.76 − 59 =
2. 2.420 − 19 =
3. 3.162 − 98 =
4. 4.166 − 96 =
5. 5.433 − 38 =
6. 6.333 − 16 =
7. 7.132 − 87 =
8. 8.440 − 69 =
9. 9.595 − 16 =
10. 10.376 − 26 =
11. 11.595 − 18 =
12. 12.109 − 87 =
13. 13.153 − 47 =
14. 14.483 − 67 =
15. 15.154 − 26 =
16. 16.405 − 77 =
17. 17.290 − 97 =
18. 18.571 − 97 =
19. 19.572 − 98 =
20. 20.309 − 58 =
21. 21.354 − 39 =
22. 22.165 − 79 =
23. 23.417 − 48 =
24. 24.296 − 96 =
25. 25.308 − 29 =
26. 26.598 − 86 =
27. 27.350 − 88 =
28. 28.112 − 17 =
29. 29.420 − 38 =
30. 30.522 − 76 =
31. 31.167 − 89 =
32. 32.243 − 97 =
33. 33.263 − 68 =
34. 34.67 − 47 =
35. 35.155 − 57 =
36. 36.116 − 89 =
37. 37.411 − 26 =
38. 38.449 − 96 =
39. 39.288 − 88 =
40. 40.230 − 86 =

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