Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 336 · 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. 1.527 − 36 =
2. 2.412 − 98 =
3. 3.377 − 29 =
4. 4.130 − 37 =
5. 5.180 − 67 =
6. 6.367 − 16 =
7. 7.205 − 47 =
8. 8.130 − 57 =
9. 9.384 − 46 =
10. 10.420 − 48 =
11. 11.374 − 46 =
12. 12.164 − 87 =
13. 13.579 − 78 =
14. 14.247 − 67 =
15. 15.242 − 29 =
16. 16.588 − 37 =
17. 17.575 − 18 =
18. 18.111 − 86 =
19. 19.359 − 39 =
20. 20.595 − 17 =
21. 21.462 − 37 =
22. 22.200 − 26 =
23. 23.365 − 46 =
24. 24.478 − 28 =
25. 25.100 − 38 =
26. 26.152 − 96 =
27. 27.54 − 39 =
28. 28.264 − 87 =
29. 29.158 − 46 =
30. 30.457 − 66 =
31. 31.511 − 99 =
32. 32.362 − 26 =
33. 33.100 − 89 =
34. 34.571 − 19 =
35. 35.499 − 29 =
36. 36.424 − 29 =
37. 37.569 − 38 =
38. 38.216 − 17 =
39. 39.222 − 57 =
40. 40.205 − 36 =

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