Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 857 · 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. 1.112 − 59 =
2. 2.287 − 96 =
3. 3.391 − 46 =
4. 4.183 − 16 =
5. 5.166 − 38 =
6. 6.519 − 99 =
7. 7.404 − 78 =
8. 8.437 − 56 =
9. 9.265 − 37 =
10. 10.278 − 88 =
11. 11.582 − 38 =
12. 12.189 − 88 =
13. 13.101 − 36 =
14. 14.128 − 19 =
15. 15.338 − 79 =
16. 16.317 − 89 =
17. 17.165 − 88 =
18. 18.106 − 68 =
19. 19.413 − 66 =
20. 20.250 − 48 =
21. 21.467 − 18 =
22. 22.565 − 56 =
23. 23.278 − 96 =
24. 24.189 − 59 =
25. 25.238 − 76 =
26. 26.484 − 46 =
27. 27.337 − 27 =
28. 28.304 − 18 =
29. 29.381 − 18 =
30. 30.359 − 66 =
31. 31.410 − 86 =
32. 32.540 − 27 =
33. 33.279 − 48 =
34. 34.430 − 16 =
35. 35.146 − 89 =
36. 36.490 − 26 =
37. 37.530 − 18 =
38. 38.100 − 59 =
39. 39.404 − 69 =
40. 40.546 − 96 =

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