Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 190 · 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. 1.166 − 86 =
2. 2.496 − 96 =
3. 3.111 − 36 =
4. 4.583 − 89 =
5. 5.128 − 18 =
6. 6.504 − 97 =
7. 7.191 − 76 =
8. 8.105 − 58 =
9. 9.541 − 56 =
10. 10.330 − 59 =
11. 11.224 − 99 =
12. 12.206 − 86 =
13. 13.117 − 26 =
14. 14.463 − 98 =
15. 15.180 − 56 =
16. 16.484 − 96 =
17. 17.437 − 58 =
18. 18.384 − 86 =
19. 19.166 − 79 =
20. 20.470 − 66 =
21. 21.346 − 26 =
22. 22.407 − 18 =
23. 23.360 − 79 =
24. 24.190 − 97 =
25. 25.200 − 67 =
26. 26.372 − 97 =
27. 27.258 − 38 =
28. 28.412 − 26 =
29. 29.381 − 17 =
30. 30.528 − 39 =
31. 31.433 − 99 =
32. 32.465 − 77 =
33. 33.197 − 38 =
34. 34.140 − 16 =
35. 35.497 − 68 =
36. 36.494 − 37 =
37. 37.96 − 19 =
38. 38.445 − 26 =
39. 39.491 − 17 =
40. 40.212 − 68 =

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