Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 243 · 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. 1.270 − 96 =
2. 2.132 − 19 =
3. 3.194 − 79 =
4. 4.149 − 96 =
5. 5.388 − 28 =
6. 6.594 − 38 =
7. 7.237 − 16 =
8. 8.180 − 86 =
9. 9.334 − 98 =
10. 10.527 − 99 =
11. 11.58 − 27 =
12. 12.128 − 67 =
13. 13.542 − 37 =
14. 14.302 − 58 =
15. 15.488 − 18 =
16. 16.148 − 58 =
17. 17.505 − 57 =
18. 18.446 − 97 =
19. 19.366 − 16 =
20. 20.285 − 19 =
21. 21.283 − 48 =
22. 22.275 − 98 =
23. 23.148 − 47 =
24. 24.407 − 18 =
25. 25.195 − 46 =
26. 26.325 − 37 =
27. 27.529 − 36 =
28. 28.375 − 59 =
29. 29.510 − 49 =
30. 30.501 − 88 =
31. 31.369 − 39 =
32. 32.215 − 16 =
33. 33.196 − 27 =
34. 34.418 − 69 =
35. 35.449 − 59 =
36. 36.162 − 99 =
37. 37.469 − 28 =
38. 38.536 − 68 =
39. 39.452 − 27 =
40. 40.567 − 16 =

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