Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 759 · 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. 1.372 − 78 =
2. 2.457 − 68 =
3. 3.513 − 28 =
4. 4.575 − 36 =
5. 5.253 − 99 =
6. 6.356 − 76 =
7. 7.120 − 59 =
8. 8.195 − 96 =
9. 9.262 − 26 =
10. 10.315 − 77 =
11. 11.303 − 88 =
12. 12.212 − 66 =
13. 13.445 − 97 =
14. 14.558 − 36 =
15. 15.130 − 29 =
16. 16.191 − 87 =
17. 17.222 − 38 =
18. 18.590 − 97 =
19. 19.545 − 66 =
20. 20.183 − 18 =
21. 21.563 − 66 =
22. 22.296 − 18 =
23. 23.273 − 69 =
24. 24.371 − 36 =
25. 25.473 − 46 =
26. 26.351 − 98 =
27. 27.286 − 88 =
28. 28.586 − 17 =
29. 29.247 − 56 =
30. 30.133 − 96 =
31. 31.223 − 58 =
32. 32.155 − 76 =
33. 33.557 − 76 =
34. 34.386 − 86 =
35. 35.76 − 27 =
36. 36.246 − 66 =
37. 37.470 − 18 =
38. 38.365 − 89 =
39. 39.96 − 78 =
40. 40.212 − 16 =

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