Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 954 · 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. 1.158 − 37 =
2. 2.330 − 59 =
3. 3.352 − 58 =
4. 4.143 − 69 =
5. 5.530 − 28 =
6. 6.343 − 96 =
7. 7.296 − 89 =
8. 8.351 − 98 =
9. 9.414 − 38 =
10. 10.186 − 17 =
11. 11.283 − 36 =
12. 12.438 − 59 =
13. 13.382 − 69 =
14. 14.421 − 16 =
15. 15.287 − 76 =
16. 16.315 − 37 =
17. 17.203 − 38 =
18. 18.434 − 69 =
19. 19.555 − 48 =
20. 20.262 − 47 =
21. 21.422 − 17 =
22. 22.146 − 39 =
23. 23.252 − 79 =
24. 24.57 − 29 =
25. 25.147 − 46 =
26. 26.579 − 39 =
27. 27.273 − 69 =
28. 28.343 − 16 =
29. 29.62 − 47 =
30. 30.168 − 99 =
31. 31.206 − 56 =
32. 32.427 − 98 =
33. 33.314 − 77 =
34. 34.219 − 47 =
35. 35.466 − 46 =
36. 36.156 − 37 =
37. 37.153 − 19 =
38. 38.560 − 56 =
39. 39.546 − 29 =
40. 40.508 − 87 =

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