Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 653 · 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. 1.255 − 77 =
2. 2.383 − 49 =
3. 3.327 − 79 =
4. 4.539 − 59 =
5. 5.339 − 46 =
6. 6.476 − 17 =
7. 7.192 − 38 =
8. 8.243 − 97 =
9. 9.547 − 19 =
10. 10.470 − 19 =
11. 11.296 − 18 =
12. 12.543 − 56 =
13. 13.268 − 79 =
14. 14.138 − 79 =
15. 15.481 − 87 =
16. 16.144 − 76 =
17. 17.184 − 36 =
18. 18.189 − 46 =
19. 19.67 − 18 =
20. 20.347 − 89 =
21. 21.520 − 47 =
22. 22.271 − 29 =
23. 23.121 − 36 =
24. 24.390 − 67 =
25. 25.316 − 56 =
26. 26.418 − 48 =
27. 27.283 − 16 =
28. 28.223 − 98 =
29. 29.519 − 37 =
30. 30.313 − 88 =
31. 31.450 − 46 =
32. 32.367 − 99 =
33. 33.124 − 17 =
34. 34.451 − 37 =
35. 35.541 − 68 =
36. 36.312 − 87 =
37. 37.475 − 29 =
38. 38.509 − 77 =
39. 39.187 − 56 =
40. 40.109 − 96 =

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