Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 877 · 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. 1.504 − 88 =
2. 2.160 − 77 =
3. 3.514 − 16 =
4. 4.434 − 16 =
5. 5.410 − 68 =
6. 6.327 − 68 =
7. 7.146 − 38 =
8. 8.427 − 27 =
9. 9.347 − 69 =
10. 10.595 − 19 =
11. 11.507 − 27 =
12. 12.322 − 56 =
13. 13.473 − 26 =
14. 14.103 − 37 =
15. 15.190 − 69 =
16. 16.126 − 18 =
17. 17.114 − 99 =
18. 18.139 − 36 =
19. 19.498 − 69 =
20. 20.183 − 97 =
21. 21.564 − 18 =
22. 22.424 − 56 =
23. 23.104 − 46 =
24. 24.77 − 59 =
25. 25.550 − 37 =
26. 26.162 − 59 =
27. 27.430 − 16 =
28. 28.578 − 59 =
29. 29.150 − 66 =
30. 30.456 − 49 =
31. 31.59 − 47 =
32. 32.366 − 37 =
33. 33.248 − 69 =
34. 34.270 − 57 =
35. 35.163 − 78 =
36. 36.419 − 97 =
37. 37.374 − 16 =
38. 38.549 − 49 =
39. 39.588 − 89 =
40. 40.282 − 26 =

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