Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 733 · 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. 1.164 − 66 =
2. 2.587 − 36 =
3. 3.268 − 96 =
4. 4.461 − 39 =
5. 5.443 − 99 =
6. 6.219 − 26 =
7. 7.309 − 86 =
8. 8.247 − 66 =
9. 9.456 − 46 =
10. 10.220 − 78 =
11. 11.579 − 66 =
12. 12.459 − 58 =
13. 13.215 − 18 =
14. 14.581 − 18 =
15. 15.125 − 18 =
16. 16.300 − 49 =
17. 17.452 − 78 =
18. 18.299 − 49 =
19. 19.334 − 18 =
20. 20.157 − 46 =
21. 21.78 − 18 =
22. 22.475 − 88 =
23. 23.106 − 16 =
24. 24.376 − 99 =
25. 25.271 − 18 =
26. 26.88 − 49 =
27. 27.209 − 76 =
28. 28.383 − 27 =
29. 29.588 − 16 =
30. 30.488 − 46 =
31. 31.81 − 68 =
32. 32.427 − 87 =
33. 33.352 − 18 =
34. 34.468 − 78 =
35. 35.147 − 76 =
36. 36.533 − 99 =
37. 37.264 − 96 =
38. 38.534 − 26 =
39. 39.510 − 99 =
40. 40.77 − 76 =

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