Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 885 · 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. 1.499 − 27 =
2. 2.454 − 49 =
3. 3.505 − 26 =
4. 4.580 − 88 =
5. 5.591 − 38 =
6. 6.581 − 67 =
7. 7.385 − 27 =
8. 8.71 − 47 =
9. 9.100 − 49 =
10. 10.473 − 96 =
11. 11.74 − 16 =
12. 12.265 − 38 =
13. 13.83 − 29 =
14. 14.574 − 59 =
15. 15.348 − 88 =
16. 16.151 − 29 =
17. 17.482 − 96 =
18. 18.133 − 27 =
19. 19.163 − 99 =
20. 20.190 − 29 =
21. 21.109 − 39 =
22. 22.182 − 86 =
23. 23.529 − 29 =
24. 24.189 − 37 =
25. 25.265 − 26 =
26. 26.514 − 46 =
27. 27.286 − 37 =
28. 28.184 − 26 =
29. 29.330 − 27 =
30. 30.359 − 87 =
31. 31.235 − 19 =
32. 32.353 − 58 =
33. 33.253 − 28 =
34. 34.375 − 48 =
35. 35.198 − 56 =
36. 36.533 − 67 =
37. 37.481 − 18 =
38. 38.177 − 87 =
39. 39.563 − 27 =
40. 40.377 − 37 =

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