Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 614 · 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. 1.277 − 19 =
2. 2.351 − 46 =
3. 3.187 − 47 =
4. 4.245 − 89 =
5. 5.470 − 59 =
6. 6.399 − 69 =
7. 7.60 − 26 =
8. 8.169 − 36 =
9. 9.578 − 67 =
10. 10.141 − 98 =
11. 11.573 − 46 =
12. 12.157 − 97 =
13. 13.591 − 19 =
14. 14.392 − 18 =
15. 15.591 − 56 =
16. 16.381 − 38 =
17. 17.256 − 39 =
18. 18.235 − 97 =
19. 19.202 − 66 =
20. 20.494 − 56 =
21. 21.570 − 26 =
22. 22.494 − 48 =
23. 23.579 − 86 =
24. 24.576 − 68 =
25. 25.94 − 46 =
26. 26.568 − 47 =
27. 27.264 − 98 =
28. 28.132 − 68 =
29. 29.372 − 18 =
30. 30.66 − 18 =
31. 31.140 − 26 =
32. 32.327 − 56 =
33. 33.518 − 78 =
34. 34.572 − 58 =
35. 35.166 − 88 =
36. 36.146 − 59 =
37. 37.163 − 66 =
38. 38.139 − 37 =
39. 39.117 − 78 =
40. 40.445 − 26 =

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