Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 224 · 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. 1.447 − 59 =
2. 2.533 − 77 =
3. 3.113 − 38 =
4. 4.497 − 56 =
5. 5.230 − 69 =
6. 6.363 − 48 =
7. 7.512 − 68 =
8. 8.281 − 39 =
9. 9.249 − 79 =
10. 10.360 − 56 =
11. 11.323 − 87 =
12. 12.214 − 38 =
13. 13.541 − 28 =
14. 14.348 − 39 =
15. 15.415 − 38 =
16. 16.506 − 29 =
17. 17.95 − 86 =
18. 18.156 − 99 =
19. 19.180 − 46 =
20. 20.230 − 37 =
21. 21.322 − 37 =
22. 22.337 − 16 =
23. 23.126 − 27 =
24. 24.187 − 99 =
25. 25.442 − 76 =
26. 26.563 − 16 =
27. 27.357 − 47 =
28. 28.83 − 59 =
29. 29.435 − 37 =
30. 30.193 − 48 =
31. 31.164 − 76 =
32. 32.297 − 49 =
33. 33.171 − 79 =
34. 34.56 − 38 =
35. 35.354 − 16 =
36. 36.543 − 27 =
37. 37.196 − 28 =
38. 38.74 − 27 =
39. 39.201 − 59 =
40. 40.273 − 36 =

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