Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 700 · 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. 1.256 − 96 =
2. 2.337 − 46 =
3. 3.331 − 17 =
4. 4.345 − 86 =
5. 5.590 − 69 =
6. 6.447 − 77 =
7. 7.379 − 57 =
8. 8.158 − 59 =
9. 9.479 − 39 =
10. 10.523 − 48 =
11. 11.436 − 98 =
12. 12.512 − 48 =
13. 13.171 − 66 =
14. 14.205 − 46 =
15. 15.404 − 17 =
16. 16.195 − 86 =
17. 17.543 − 47 =
18. 18.491 − 66 =
19. 19.349 − 36 =
20. 20.240 − 56 =
21. 21.90 − 89 =
22. 22.63 − 26 =
23. 23.306 − 77 =
24. 24.189 − 29 =
25. 25.495 − 86 =
26. 26.413 − 16 =
27. 27.148 − 66 =
28. 28.541 − 97 =
29. 29.307 − 78 =
30. 30.593 − 26 =
31. 31.263 − 17 =
32. 32.473 − 99 =
33. 33.190 − 96 =
34. 34.298 − 86 =
35. 35.458 − 19 =
36. 36.115 − 27 =
37. 37.503 − 89 =
38. 38.581 − 37 =
39. 39.271 − 37 =
40. 40.566 − 78 =

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