Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 965 · 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. 1.460 − 37 =
2. 2.524 − 47 =
3. 3.245 − 27 =
4. 4.87 − 67 =
5. 5.586 − 58 =
6. 6.245 − 17 =
7. 7.417 − 99 =
8. 8.387 − 68 =
9. 9.176 − 99 =
10. 10.391 − 59 =
11. 11.157 − 58 =
12. 12.132 − 56 =
13. 13.352 − 39 =
14. 14.197 − 19 =
15. 15.263 − 77 =
16. 16.593 − 57 =
17. 17.555 − 56 =
18. 18.422 − 38 =
19. 19.462 − 16 =
20. 20.227 − 48 =
21. 21.318 − 68 =
22. 22.330 − 17 =
23. 23.449 − 26 =
24. 24.579 − 76 =
25. 25.424 − 86 =
26. 26.111 − 69 =
27. 27.358 − 79 =
28. 28.544 − 49 =
29. 29.506 − 26 =
30. 30.167 − 67 =
31. 31.294 − 66 =
32. 32.127 − 56 =
33. 33.157 − 37 =
34. 34.154 − 66 =
35. 35.573 − 87 =
36. 36.297 − 99 =
37. 37.412 − 99 =
38. 38.327 − 28 =
39. 39.502 − 57 =
40. 40.303 − 39 =

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