Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 205 · 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. 1.202 − 57 =
2. 2.566 − 76 =
3. 3.501 − 89 =
4. 4.379 − 89 =
5. 5.155 − 96 =
6. 6.569 − 48 =
7. 7.236 − 56 =
8. 8.313 − 26 =
9. 9.181 − 18 =
10. 10.141 − 16 =
11. 11.202 − 59 =
12. 12.334 − 48 =
13. 13.484 − 66 =
14. 14.62 − 56 =
15. 15.242 − 29 =
16. 16.181 − 66 =
17. 17.522 − 26 =
18. 18.561 − 17 =
19. 19.150 − 47 =
20. 20.420 − 87 =
21. 21.125 − 16 =
22. 22.339 − 29 =
23. 23.122 − 36 =
24. 24.526 − 68 =
25. 25.108 − 28 =
26. 26.118 − 28 =
27. 27.586 − 58 =
28. 28.246 − 67 =
29. 29.494 − 29 =
30. 30.315 − 67 =
31. 31.144 − 77 =
32. 32.304 − 56 =
33. 33.166 − 78 =
34. 34.240 − 67 =
35. 35.572 − 18 =
36. 36.476 − 19 =
37. 37.222 − 36 =
38. 38.173 − 56 =
39. 39.489 − 88 =
40. 40.408 − 89 =

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