Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 78 · 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. 1.224 − 67 =
2. 2.74 − 67 =
3. 3.576 − 16 =
4. 4.588 − 76 =
5. 5.389 − 86 =
6. 6.394 − 37 =
7. 7.348 − 59 =
8. 8.104 − 16 =
9. 9.377 − 67 =
10. 10.530 − 68 =
11. 11.137 − 49 =
12. 12.582 − 37 =
13. 13.80 − 39 =
14. 14.300 − 38 =
15. 15.242 − 19 =
16. 16.579 − 96 =
17. 17.571 − 79 =
18. 18.465 − 69 =
19. 19.280 − 87 =
20. 20.469 − 16 =
21. 21.452 − 37 =
22. 22.199 − 17 =
23. 23.75 − 29 =
24. 24.496 − 98 =
25. 25.90 − 46 =
26. 26.432 − 27 =
27. 27.396 − 97 =
28. 28.519 − 16 =
29. 29.211 − 26 =
30. 30.584 − 17 =
31. 31.323 − 58 =
32. 32.478 − 38 =
33. 33.98 − 18 =
34. 34.246 − 29 =
35. 35.225 − 29 =
36. 36.72 − 36 =
37. 37.169 − 29 =
38. 38.313 − 67 =
39. 39.200 − 98 =
40. 40.468 − 97 =

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