Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 418 · 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 − 59 =
2. 2.438 − 19 =
3. 3.117 − 78 =
4. 4.355 − 37 =
5. 5.556 − 26 =
6. 6.113 − 97 =
7. 7.300 − 88 =
8. 8.143 − 97 =
9. 9.559 − 79 =
10. 10.362 − 29 =
11. 11.432 − 18 =
12. 12.290 − 58 =
13. 13.535 − 17 =
14. 14.292 − 47 =
15. 15.173 − 18 =
16. 16.166 − 86 =
17. 17.224 − 77 =
18. 18.541 − 46 =
19. 19.380 − 58 =
20. 20.141 − 17 =
21. 21.400 − 56 =
22. 22.304 − 77 =
23. 23.445 − 98 =
24. 24.158 − 86 =
25. 25.183 − 89 =
26. 26.80 − 26 =
27. 27.117 − 57 =
28. 28.208 − 18 =
29. 29.495 − 99 =
30. 30.384 − 79 =
31. 31.108 − 49 =
32. 32.526 − 28 =
33. 33.304 − 46 =
34. 34.440 − 58 =
35. 35.347 − 66 =
36. 36.315 − 17 =
37. 37.409 − 76 =
38. 38.463 − 26 =
39. 39.296 − 29 =
40. 40.274 − 89 =

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