Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 346 · 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. 1.93 − 37 =
2. 2.371 − 98 =
3. 3.304 − 38 =
4. 4.176 − 57 =
5. 5.593 − 76 =
6. 6.425 − 27 =
7. 7.564 − 96 =
8. 8.354 − 26 =
9. 9.554 − 48 =
10. 10.573 − 16 =
11. 11.597 − 46 =
12. 12.112 − 96 =
13. 13.135 − 26 =
14. 14.592 − 87 =
15. 15.132 − 69 =
16. 16.467 − 16 =
17. 17.510 − 67 =
18. 18.156 − 57 =
19. 19.421 − 66 =
20. 20.272 − 77 =
21. 21.124 − 59 =
22. 22.361 − 77 =
23. 23.197 − 98 =
24. 24.220 − 18 =
25. 25.134 − 18 =
26. 26.485 − 18 =
27. 27.273 − 16 =
28. 28.185 − 16 =
29. 29.432 − 37 =
30. 30.218 − 58 =
31. 31.373 − 76 =
32. 32.554 − 67 =
33. 33.410 − 26 =
34. 34.144 − 69 =
35. 35.506 − 19 =
36. 36.61 − 46 =
37. 37.190 − 38 =
38. 38.119 − 77 =
39. 39.421 − 58 =
40. 40.501 − 99 =

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