Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 616 · 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. 1.400 − 98 =
2. 2.71 − 67 =
3. 3.162 − 37 =
4. 4.189 − 49 =
5. 5.193 − 76 =
6. 6.462 − 88 =
7. 7.513 − 67 =
8. 8.306 − 17 =
9. 9.190 − 66 =
10. 10.102 − 38 =
11. 11.257 − 96 =
12. 12.209 − 96 =
13. 13.351 − 56 =
14. 14.70 − 17 =
15. 15.546 − 88 =
16. 16.398 − 17 =
17. 17.457 − 59 =
18. 18.478 − 96 =
19. 19.189 − 17 =
20. 20.391 − 96 =
21. 21.352 − 86 =
22. 22.163 − 98 =
23. 23.459 − 98 =
24. 24.480 − 86 =
25. 25.202 − 38 =
26. 26.440 − 19 =
27. 27.111 − 47 =
28. 28.61 − 37 =
29. 29.62 − 47 =
30. 30.375 − 29 =
31. 31.591 − 79 =
32. 32.352 − 49 =
33. 33.285 − 56 =
34. 34.386 − 76 =
35. 35.257 − 17 =
36. 36.320 − 89 =
37. 37.140 − 19 =
38. 38.164 − 28 =
39. 39.596 − 98 =
40. 40.247 − 36 =

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