Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 996 · 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. 1.477 − 86 =
2. 2.487 − 99 =
3. 3.181 − 46 =
4. 4.202 − 37 =
5. 5.551 − 56 =
6. 6.553 − 76 =
7. 7.260 − 36 =
8. 8.266 − 78 =
9. 9.237 − 19 =
10. 10.82 − 49 =
11. 11.83 − 58 =
12. 12.136 − 36 =
13. 13.159 − 77 =
14. 14.508 − 77 =
15. 15.259 − 29 =
16. 16.200 − 87 =
17. 17.312 − 26 =
18. 18.111 − 27 =
19. 19.265 − 49 =
20. 20.380 − 26 =
21. 21.126 − 58 =
22. 22.134 − 26 =
23. 23.74 − 26 =
24. 24.544 − 68 =
25. 25.165 − 57 =
26. 26.497 − 56 =
27. 27.520 − 29 =
28. 28.540 − 49 =
29. 29.320 − 87 =
30. 30.251 − 67 =
31. 31.345 − 36 =
32. 32.56 − 38 =
33. 33.110 − 89 =
34. 34.481 − 76 =
35. 35.591 − 98 =
36. 36.207 − 49 =
37. 37.517 − 19 =
38. 38.318 − 28 =
39. 39.115 − 89 =
40. 40.340 − 66 =

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