Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 686 · 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. 1.529 − 97 =
2. 2.533 − 46 =
3. 3.350 − 57 =
4. 4.491 − 17 =
5. 5.102 − 37 =
6. 6.573 − 16 =
7. 7.107 − 18 =
8. 8.94 − 87 =
9. 9.231 − 59 =
10. 10.409 − 46 =
11. 11.527 − 58 =
12. 12.254 − 17 =
13. 13.249 − 88 =
14. 14.417 − 88 =
15. 15.227 − 57 =
16. 16.195 − 99 =
17. 17.393 − 36 =
18. 18.365 − 79 =
19. 19.368 − 96 =
20. 20.118 − 29 =
21. 21.168 − 66 =
22. 22.367 − 46 =
23. 23.511 − 39 =
24. 24.594 − 68 =
25. 25.276 − 66 =
26. 26.320 − 47 =
27. 27.458 − 16 =
28. 28.358 − 69 =
29. 29.416 − 97 =
30. 30.59 − 47 =
31. 31.148 − 47 =
32. 32.469 − 79 =
33. 33.566 − 18 =
34. 34.492 − 76 =
35. 35.412 − 97 =
36. 36.248 − 19 =
37. 37.153 − 57 =
38. 38.151 − 26 =
39. 39.111 − 16 =
40. 40.112 − 26 =

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