Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 957 · 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. 1.380 − 29 =
2. 2.461 − 86 =
3. 3.189 − 96 =
4. 4.193 − 49 =
5. 5.131 − 67 =
6. 6.588 − 99 =
7. 7.502 − 67 =
8. 8.171 − 38 =
9. 9.414 − 58 =
10. 10.580 − 59 =
11. 11.129 − 18 =
12. 12.75 − 36 =
13. 13.466 − 58 =
14. 14.215 − 36 =
15. 15.590 − 27 =
16. 16.171 − 76 =
17. 17.207 − 76 =
18. 18.238 − 76 =
19. 19.278 − 66 =
20. 20.169 − 56 =
21. 21.195 − 37 =
22. 22.309 − 66 =
23. 23.207 − 27 =
24. 24.166 − 87 =
25. 25.263 − 86 =
26. 26.300 − 27 =
27. 27.164 − 99 =
28. 28.366 − 96 =
29. 29.424 − 88 =
30. 30.392 − 28 =
31. 31.452 − 78 =
32. 32.317 − 39 =
33. 33.334 − 17 =
34. 34.246 − 98 =
35. 35.552 − 78 =
36. 36.325 − 59 =
37. 37.415 − 19 =
38. 38.332 − 97 =
39. 39.505 − 56 =
40. 40.113 − 19 =

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