Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 503 · 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. 1.124 − 88 =
2. 2.379 − 48 =
3. 3.511 − 39 =
4. 4.461 − 69 =
5. 5.537 − 88 =
6. 6.235 − 56 =
7. 7.262 − 99 =
8. 8.274 − 49 =
9. 9.598 − 68 =
10. 10.395 − 88 =
11. 11.95 − 68 =
12. 12.427 − 27 =
13. 13.556 − 49 =
14. 14.142 − 99 =
15. 15.432 − 69 =
16. 16.499 − 96 =
17. 17.362 − 18 =
18. 18.300 − 27 =
19. 19.492 − 77 =
20. 20.290 − 59 =
21. 21.398 − 17 =
22. 22.151 − 87 =
23. 23.409 − 77 =
24. 24.359 − 57 =
25. 25.254 − 89 =
26. 26.295 − 38 =
27. 27.153 − 76 =
28. 28.99 − 19 =
29. 29.331 − 17 =
30. 30.374 − 98 =
31. 31.178 − 78 =
32. 32.385 − 38 =
33. 33.359 − 57 =
34. 34.489 − 86 =
35. 35.162 − 76 =
36. 36.305 − 98 =
37. 37.422 − 58 =
38. 38.133 − 18 =
39. 39.532 − 16 =
40. 40.201 − 39 =

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