Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 562 · 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. 1.470 − 88 =
2. 2.180 − 58 =
3. 3.147 − 57 =
4. 4.150 − 78 =
5. 5.590 − 96 =
6. 6.198 − 16 =
7. 7.471 − 56 =
8. 8.591 − 47 =
9. 9.459 − 19 =
10. 10.115 − 27 =
11. 11.308 − 97 =
12. 12.592 − 77 =
13. 13.563 − 28 =
14. 14.405 − 38 =
15. 15.276 − 29 =
16. 16.153 − 58 =
17. 17.113 − 56 =
18. 18.395 − 36 =
19. 19.360 − 18 =
20. 20.85 − 49 =
21. 21.499 − 97 =
22. 22.462 − 68 =
23. 23.248 − 46 =
24. 24.368 − 48 =
25. 25.573 − 58 =
26. 26.262 − 88 =
27. 27.232 − 49 =
28. 28.286 − 57 =
29. 29.127 − 97 =
30. 30.146 − 97 =
31. 31.598 − 97 =
32. 32.120 − 87 =
33. 33.454 − 66 =
34. 34.316 − 66 =
35. 35.271 − 47 =
36. 36.156 − 89 =
37. 37.547 − 29 =
38. 38.482 − 76 =
39. 39.183 − 29 =
40. 40.206 − 18 =

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