Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 610 · 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. 1.525 − 96 =
2. 2.518 − 59 =
3. 3.525 − 28 =
4. 4.374 − 88 =
5. 5.55 − 37 =
6. 6.220 − 19 =
7. 7.249 − 26 =
8. 8.150 − 37 =
9. 9.67 − 26 =
10. 10.311 − 89 =
11. 11.392 − 48 =
12. 12.510 − 19 =
13. 13.169 − 67 =
14. 14.309 − 37 =
15. 15.352 − 36 =
16. 16.315 − 18 =
17. 17.449 − 88 =
18. 18.231 − 37 =
19. 19.130 − 89 =
20. 20.301 − 67 =
21. 21.257 − 89 =
22. 22.106 − 16 =
23. 23.151 − 37 =
24. 24.304 − 27 =
25. 25.126 − 26 =
26. 26.459 − 78 =
27. 27.159 − 28 =
28. 28.321 − 77 =
29. 29.117 − 86 =
30. 30.429 − 16 =
31. 31.175 − 69 =
32. 32.160 − 17 =
33. 33.483 − 99 =
34. 34.289 − 99 =
35. 35.581 − 36 =
36. 36.582 − 28 =
37. 37.571 − 86 =
38. 38.74 − 59 =
39. 39.570 − 17 =
40. 40.174 − 59 =

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