Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 974 · 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. 1.157 − 68 =
2. 2.550 − 29 =
3. 3.567 − 46 =
4. 4.234 − 39 =
5. 5.102 − 18 =
6. 6.511 − 29 =
7. 7.477 − 37 =
8. 8.398 − 58 =
9. 9.258 − 76 =
10. 10.506 − 17 =
11. 11.407 − 67 =
12. 12.217 − 48 =
13. 13.321 − 38 =
14. 14.159 − 17 =
15. 15.335 − 97 =
16. 16.467 − 99 =
17. 17.543 − 16 =
18. 18.385 − 49 =
19. 19.103 − 68 =
20. 20.402 − 89 =
21. 21.399 − 79 =
22. 22.558 − 36 =
23. 23.289 − 86 =
24. 24.561 − 96 =
25. 25.186 − 86 =
26. 26.595 − 26 =
27. 27.465 − 77 =
28. 28.301 − 38 =
29. 29.480 − 87 =
30. 30.235 − 87 =
31. 31.576 − 19 =
32. 32.350 − 89 =
33. 33.339 − 58 =
34. 34.244 − 57 =
35. 35.334 − 37 =
36. 36.86 − 66 =
37. 37.448 − 16 =
38. 38.190 − 57 =
39. 39.89 − 76 =
40. 40.555 − 28 =

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