Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 767 · 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. 1.261 − 38 =
2. 2.427 − 17 =
3. 3.596 − 37 =
4. 4.152 − 69 =
5. 5.482 − 96 =
6. 6.582 − 68 =
7. 7.258 − 89 =
8. 8.176 − 36 =
9. 9.500 − 37 =
10. 10.184 − 69 =
11. 11.123 − 28 =
12. 12.144 − 17 =
13. 13.576 − 27 =
14. 14.85 − 76 =
15. 15.367 − 79 =
16. 16.263 − 49 =
17. 17.474 − 26 =
18. 18.413 − 18 =
19. 19.182 − 18 =
20. 20.151 − 26 =
21. 21.283 − 39 =
22. 22.323 − 28 =
23. 23.493 − 58 =
24. 24.178 − 69 =
25. 25.337 − 38 =
26. 26.75 − 59 =
27. 27.216 − 98 =
28. 28.528 − 17 =
29. 29.296 − 36 =
30. 30.92 − 18 =
31. 31.123 − 17 =
32. 32.578 − 69 =
33. 33.161 − 98 =
34. 34.128 − 27 =
35. 35.556 − 46 =
36. 36.541 − 96 =
37. 37.414 − 88 =
38. 38.527 − 79 =
39. 39.555 − 66 =
40. 40.187 − 57 =

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