Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 274 · 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. 1.251 − 47 =
2. 2.346 − 77 =
3. 3.126 − 19 =
4. 4.385 − 16 =
5. 5.149 − 59 =
6. 6.531 − 26 =
7. 7.257 − 69 =
8. 8.425 − 36 =
9. 9.368 − 97 =
10. 10.253 − 46 =
11. 11.159 − 68 =
12. 12.62 − 57 =
13. 13.543 − 19 =
14. 14.334 − 88 =
15. 15.589 − 76 =
16. 16.169 − 78 =
17. 17.446 − 28 =
18. 18.324 − 88 =
19. 19.103 − 58 =
20. 20.486 − 36 =
21. 21.195 − 48 =
22. 22.591 − 86 =
23. 23.492 − 86 =
24. 24.116 − 18 =
25. 25.557 − 48 =
26. 26.231 − 99 =
27. 27.185 − 88 =
28. 28.409 − 86 =
29. 29.508 − 77 =
30. 30.168 − 48 =
31. 31.216 − 36 =
32. 32.506 − 96 =
33. 33.341 − 98 =
34. 34.474 − 29 =
35. 35.368 − 77 =
36. 36.277 − 69 =
37. 37.317 − 37 =
38. 38.587 − 46 =
39. 39.152 − 69 =
40. 40.584 − 38 =

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