Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 777 · 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. 1.426 − 56 =
2. 2.127 − 57 =
3. 3.311 − 46 =
4. 4.419 − 36 =
5. 5.535 − 17 =
6. 6.173 − 38 =
7. 7.441 − 37 =
8. 8.200 − 48 =
9. 9.378 − 98 =
10. 10.452 − 26 =
11. 11.221 − 38 =
12. 12.384 − 57 =
13. 13.592 − 78 =
14. 14.477 − 57 =
15. 15.161 − 36 =
16. 16.303 − 76 =
17. 17.334 − 17 =
18. 18.170 − 99 =
19. 19.346 − 66 =
20. 20.375 − 96 =
21. 21.566 − 57 =
22. 22.471 − 46 =
23. 23.543 − 37 =
24. 24.443 − 66 =
25. 25.112 − 46 =
26. 26.115 − 96 =
27. 27.120 − 27 =
28. 28.450 − 28 =
29. 29.594 − 27 =
30. 30.194 − 96 =
31. 31.162 − 17 =
32. 32.470 − 48 =
33. 33.57 − 26 =
34. 34.598 − 96 =
35. 35.54 − 27 =
36. 36.419 − 36 =
37. 37.410 − 86 =
38. 38.169 − 68 =
39. 39.230 − 89 =
40. 40.471 − 88 =

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