Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 664 · 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. 1.166 − 38 =
2. 2.209 − 59 =
3. 3.140 − 48 =
4. 4.467 − 39 =
5. 5.373 − 76 =
6. 6.428 − 29 =
7. 7.72 − 18 =
8. 8.179 − 48 =
9. 9.336 − 46 =
10. 10.140 − 59 =
11. 11.184 − 16 =
12. 12.537 − 76 =
13. 13.360 − 17 =
14. 14.182 − 78 =
15. 15.550 − 17 =
16. 16.480 − 99 =
17. 17.469 − 16 =
18. 18.351 − 17 =
19. 19.329 − 78 =
20. 20.92 − 26 =
21. 21.500 − 18 =
22. 22.73 − 26 =
23. 23.145 − 58 =
24. 24.238 − 78 =
25. 25.553 − 66 =
26. 26.229 − 27 =
27. 27.298 − 29 =
28. 28.197 − 48 =
29. 29.163 − 89 =
30. 30.470 − 29 =
31. 31.563 − 67 =
32. 32.531 − 87 =
33. 33.341 − 86 =
34. 34.323 − 78 =
35. 35.131 − 26 =
36. 36.165 − 79 =
37. 37.220 − 19 =
38. 38.101 − 76 =
39. 39.454 − 68 =
40. 40.340 − 48 =

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