Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 377 · 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. 1.141 − 76 =
2. 2.536 − 58 =
3. 3.176 − 78 =
4. 4.282 − 16 =
5. 5.263 − 16 =
6. 6.198 − 19 =
7. 7.72 − 38 =
8. 8.452 − 97 =
9. 9.341 − 19 =
10. 10.394 − 56 =
11. 11.589 − 19 =
12. 12.270 − 99 =
13. 13.101 − 29 =
14. 14.201 − 88 =
15. 15.385 − 97 =
16. 16.485 − 18 =
17. 17.277 − 48 =
18. 18.158 − 66 =
19. 19.69 − 28 =
20. 20.242 − 17 =
21. 21.265 − 18 =
22. 22.574 − 39 =
23. 23.216 − 17 =
24. 24.180 − 46 =
25. 25.113 − 46 =
26. 26.109 − 76 =
27. 27.85 − 76 =
28. 28.401 − 66 =
29. 29.351 − 49 =
30. 30.184 − 87 =
31. 31.510 − 96 =
32. 32.195 − 27 =
33. 33.547 − 47 =
34. 34.314 − 46 =
35. 35.95 − 38 =
36. 36.127 − 86 =
37. 37.249 − 49 =
38. 38.544 − 49 =
39. 39.241 − 47 =
40. 40.185 − 28 =

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