Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 832 · 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. 1.155 − 78 =
2. 2.212 − 36 =
3. 3.508 − 87 =
4. 4.238 − 77 =
5. 5.588 − 49 =
6. 6.256 − 17 =
7. 7.160 − 68 =
8. 8.222 − 69 =
9. 9.501 − 88 =
10. 10.331 − 58 =
11. 11.228 − 96 =
12. 12.390 − 29 =
13. 13.185 − 88 =
14. 14.327 − 36 =
15. 15.555 − 69 =
16. 16.73 − 46 =
17. 17.259 − 48 =
18. 18.124 − 48 =
19. 19.160 − 76 =
20. 20.290 − 46 =
21. 21.75 − 17 =
22. 22.539 − 78 =
23. 23.420 − 19 =
24. 24.172 − 46 =
25. 25.548 − 87 =
26. 26.415 − 27 =
27. 27.160 − 97 =
28. 28.135 − 68 =
29. 29.62 − 29 =
30. 30.170 − 76 =
31. 31.126 − 16 =
32. 32.195 − 17 =
33. 33.181 − 16 =
34. 34.113 − 37 =
35. 35.405 − 48 =
36. 36.513 − 76 =
37. 37.128 − 77 =
38. 38.398 − 29 =
39. 39.283 − 49 =
40. 40.100 − 76 =

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