Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 641 · 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. 1.418 − 16 =
2. 2.524 − 69 =
3. 3.108 − 29 =
4. 4.62 − 16 =
5. 5.260 − 17 =
6. 6.84 − 19 =
7. 7.280 − 46 =
8. 8.585 − 87 =
9. 9.584 − 37 =
10. 10.488 − 68 =
11. 11.215 − 38 =
12. 12.386 − 17 =
13. 13.490 − 16 =
14. 14.144 − 37 =
15. 15.134 − 36 =
16. 16.392 − 96 =
17. 17.143 − 18 =
18. 18.191 − 28 =
19. 19.567 − 77 =
20. 20.314 − 99 =
21. 21.219 − 38 =
22. 22.297 − 66 =
23. 23.575 − 59 =
24. 24.326 − 86 =
25. 25.527 − 66 =
26. 26.363 − 48 =
27. 27.306 − 18 =
28. 28.276 − 86 =
29. 29.590 − 77 =
30. 30.79 − 56 =
31. 31.363 − 37 =
32. 32.322 − 56 =
33. 33.548 − 67 =
34. 34.90 − 48 =
35. 35.259 − 27 =
36. 36.111 − 16 =
37. 37.102 − 17 =
38. 38.116 − 38 =
39. 39.104 − 66 =
40. 40.384 − 37 =

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