Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 933 · 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. 1.563 − 38 =
2. 2.86 − 27 =
3. 3.173 − 78 =
4. 4.401 − 58 =
5. 5.223 − 36 =
6. 6.554 − 29 =
7. 7.521 − 28 =
8. 8.202 − 59 =
9. 9.285 − 98 =
10. 10.196 − 19 =
11. 11.229 − 18 =
12. 12.349 − 79 =
13. 13.379 − 39 =
14. 14.106 − 88 =
15. 15.207 − 79 =
16. 16.84 − 26 =
17. 17.481 − 36 =
18. 18.494 − 97 =
19. 19.520 − 59 =
20. 20.590 − 37 =
21. 21.538 − 19 =
22. 22.590 − 48 =
23. 23.469 − 67 =
24. 24.129 − 48 =
25. 25.414 − 96 =
26. 26.56 − 26 =
27. 27.70 − 56 =
28. 28.560 − 37 =
29. 29.342 − 59 =
30. 30.88 − 28 =
31. 31.263 − 86 =
32. 32.201 − 26 =
33. 33.181 − 56 =
34. 34.413 − 47 =
35. 35.158 − 98 =
36. 36.319 − 58 =
37. 37.270 − 18 =
38. 38.166 − 77 =
39. 39.215 − 39 =
40. 40.376 − 46 =

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