Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 164 · 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. 1.273 − 18 =
2. 2.239 − 96 =
3. 3.377 − 89 =
4. 4.149 − 87 =
5. 5.151 − 46 =
6. 6.449 − 37 =
7. 7.452 − 96 =
8. 8.376 − 57 =
9. 9.338 − 27 =
10. 10.587 − 98 =
11. 11.76 − 47 =
12. 12.214 − 88 =
13. 13.438 − 96 =
14. 14.184 − 58 =
15. 15.410 − 26 =
16. 16.102 − 88 =
17. 17.318 − 88 =
18. 18.113 − 86 =
19. 19.265 − 17 =
20. 20.503 − 27 =
21. 21.154 − 68 =
22. 22.334 − 19 =
23. 23.215 − 68 =
24. 24.242 − 48 =
25. 25.290 − 26 =
26. 26.323 − 38 =
27. 27.301 − 18 =
28. 28.123 − 68 =
29. 29.266 − 27 =
30. 30.389 − 16 =
31. 31.319 − 39 =
32. 32.253 − 78 =
33. 33.579 − 89 =
34. 34.369 − 37 =
35. 35.243 − 48 =
36. 36.149 − 29 =
37. 37.113 − 59 =
38. 38.480 − 37 =
39. 39.419 − 36 =
40. 40.380 − 36 =

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