Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 703 · 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. 1.56 − 38 =
2. 2.461 − 76 =
3. 3.179 − 29 =
4. 4.312 − 26 =
5. 5.150 − 79 =
6. 6.248 − 46 =
7. 7.330 − 98 =
8. 8.584 − 18 =
9. 9.157 − 27 =
10. 10.172 − 78 =
11. 11.90 − 29 =
12. 12.103 − 68 =
13. 13.544 − 77 =
14. 14.415 − 36 =
15. 15.537 − 16 =
16. 16.343 − 29 =
17. 17.553 − 28 =
18. 18.441 − 49 =
19. 19.561 − 68 =
20. 20.352 − 37 =
21. 21.361 − 29 =
22. 22.229 − 27 =
23. 23.485 − 57 =
24. 24.599 − 36 =
25. 25.342 − 99 =
26. 26.476 − 36 =
27. 27.537 − 39 =
28. 28.228 − 36 =
29. 29.134 − 29 =
30. 30.357 − 29 =
31. 31.176 − 79 =
32. 32.83 − 57 =
33. 33.421 − 76 =
34. 34.533 − 98 =
35. 35.379 − 19 =
36. 36.200 − 98 =
37. 37.473 − 69 =
38. 38.92 − 27 =
39. 39.225 − 28 =
40. 40.502 − 29 =

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