Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 828 · 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. 1.591 − 88 =
2. 2.96 − 19 =
3. 3.391 − 56 =
4. 4.423 − 37 =
5. 5.218 − 68 =
6. 6.518 − 66 =
7. 7.124 − 88 =
8. 8.495 − 97 =
9. 9.267 − 36 =
10. 10.468 − 29 =
11. 11.300 − 88 =
12. 12.156 − 79 =
13. 13.390 − 39 =
14. 14.176 − 77 =
15. 15.348 − 59 =
16. 16.294 − 86 =
17. 17.341 − 38 =
18. 18.402 − 96 =
19. 19.107 − 49 =
20. 20.110 − 27 =
21. 21.134 − 66 =
22. 22.255 − 38 =
23. 23.495 − 19 =
24. 24.289 − 58 =
25. 25.165 − 47 =
26. 26.151 − 87 =
27. 27.579 − 39 =
28. 28.111 − 58 =
29. 29.533 − 86 =
30. 30.453 − 39 =
31. 31.179 − 78 =
32. 32.431 − 86 =
33. 33.518 − 37 =
34. 34.335 − 37 =
35. 35.469 − 77 =
36. 36.590 − 16 =
37. 37.534 − 96 =
38. 38.494 − 88 =
39. 39.484 − 88 =
40. 40.562 − 18 =

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