Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 652 · 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. 1.594 − 16 =
2. 2.275 − 16 =
3. 3.101 − 16 =
4. 4.597 − 66 =
5. 5.131 − 66 =
6. 6.269 − 46 =
7. 7.493 − 66 =
8. 8.383 − 19 =
9. 9.366 − 96 =
10. 10.295 − 67 =
11. 11.182 − 98 =
12. 12.148 − 26 =
13. 13.358 − 58 =
14. 14.594 − 37 =
15. 15.403 − 67 =
16. 16.540 − 27 =
17. 17.521 − 98 =
18. 18.386 − 47 =
19. 19.399 − 16 =
20. 20.583 − 27 =
21. 21.266 − 68 =
22. 22.280 − 89 =
23. 23.53 − 19 =
24. 24.280 − 87 =
25. 25.67 − 28 =
26. 26.276 − 29 =
27. 27.443 − 77 =
28. 28.138 − 38 =
29. 29.324 − 67 =
30. 30.187 − 56 =
31. 31.183 − 98 =
32. 32.441 − 46 =
33. 33.513 − 28 =
34. 34.179 − 37 =
35. 35.82 − 16 =
36. 36.243 − 78 =
37. 37.65 − 48 =
38. 38.196 − 67 =
39. 39.131 − 18 =
40. 40.462 − 87 =

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