Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 118 · 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. 1.333 − 96 =
2. 2.114 − 59 =
3. 3.292 − 66 =
4. 4.500 − 69 =
5. 5.434 − 67 =
6. 6.205 − 17 =
7. 7.430 − 36 =
8. 8.341 − 29 =
9. 9.291 − 88 =
10. 10.579 − 99 =
11. 11.487 − 16 =
12. 12.514 − 58 =
13. 13.119 − 98 =
14. 14.146 − 16 =
15. 15.129 − 48 =
16. 16.187 − 29 =
17. 17.592 − 37 =
18. 18.538 − 79 =
19. 19.257 − 27 =
20. 20.306 − 19 =
21. 21.459 − 46 =
22. 22.405 − 77 =
23. 23.448 − 18 =
24. 24.282 − 89 =
25. 25.250 − 27 =
26. 26.531 − 86 =
27. 27.194 − 36 =
28. 28.574 − 37 =
29. 29.420 − 96 =
30. 30.425 − 99 =
31. 31.296 − 38 =
32. 32.423 − 79 =
33. 33.167 − 26 =
34. 34.189 − 28 =
35. 35.335 − 69 =
36. 36.441 − 76 =
37. 37.345 − 16 =
38. 38.184 − 99 =
39. 39.160 − 99 =
40. 40.88 − 67 =

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