Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 796 · 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. 1.183 − 56 =
2. 2.528 − 78 =
3. 3.550 − 76 =
4. 4.203 − 17 =
5. 5.222 − 47 =
6. 6.136 − 26 =
7. 7.501 − 67 =
8. 8.220 − 69 =
9. 9.356 − 37 =
10. 10.92 − 56 =
11. 11.268 − 86 =
12. 12.561 − 59 =
13. 13.82 − 36 =
14. 14.416 − 37 =
15. 15.263 − 28 =
16. 16.462 − 58 =
17. 17.264 − 48 =
18. 18.67 − 16 =
19. 19.183 − 66 =
20. 20.52 − 18 =
21. 21.134 − 56 =
22. 22.523 − 66 =
23. 23.490 − 69 =
24. 24.123 − 16 =
25. 25.156 − 66 =
26. 26.364 − 18 =
27. 27.370 − 37 =
28. 28.191 − 57 =
29. 29.530 − 46 =
30. 30.367 − 58 =
31. 31.589 − 38 =
32. 32.597 − 48 =
33. 33.226 − 46 =
34. 34.387 − 27 =
35. 35.523 − 56 =
36. 36.429 − 46 =
37. 37.153 − 68 =
38. 38.594 − 68 =
39. 39.102 − 77 =
40. 40.294 − 59 =

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