Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 951 · 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. 1.319 − 89 =
2. 2.221 − 36 =
3. 3.458 − 49 =
4. 4.323 − 58 =
5. 5.307 − 36 =
6. 6.150 − 86 =
7. 7.139 − 98 =
8. 8.286 − 26 =
9. 9.591 − 48 =
10. 10.71 − 59 =
11. 11.88 − 48 =
12. 12.97 − 38 =
13. 13.222 − 29 =
14. 14.124 − 18 =
15. 15.452 − 87 =
16. 16.169 − 67 =
17. 17.494 − 48 =
18. 18.164 − 19 =
19. 19.329 − 29 =
20. 20.342 − 89 =
21. 21.346 − 48 =
22. 22.156 − 27 =
23. 23.256 − 96 =
24. 24.158 − 97 =
25. 25.172 − 79 =
26. 26.338 − 58 =
27. 27.546 − 86 =
28. 28.213 − 27 =
29. 29.271 − 68 =
30. 30.412 − 97 =
31. 31.346 − 77 =
32. 32.518 − 87 =
33. 33.370 − 88 =
34. 34.173 − 76 =
35. 35.501 − 47 =
36. 36.439 − 66 =
37. 37.299 − 76 =
38. 38.105 − 49 =
39. 39.552 − 28 =
40. 40.249 − 76 =

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