Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 95 · 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. 1.238 − 96 =
2. 2.467 − 86 =
3. 3.520 − 29 =
4. 4.457 − 27 =
5. 5.436 − 86 =
6. 6.140 − 96 =
7. 7.183 − 88 =
8. 8.489 − 87 =
9. 9.236 − 67 =
10. 10.402 − 58 =
11. 11.389 − 99 =
12. 12.153 − 36 =
13. 13.322 − 38 =
14. 14.522 − 76 =
15. 15.174 − 19 =
16. 16.331 − 29 =
17. 17.239 − 28 =
18. 18.242 − 38 =
19. 19.459 − 68 =
20. 20.400 − 39 =
21. 21.381 − 67 =
22. 22.242 − 26 =
23. 23.343 − 47 =
24. 24.307 − 29 =
25. 25.340 − 66 =
26. 26.354 − 76 =
27. 27.556 − 38 =
28. 28.268 − 48 =
29. 29.337 − 88 =
30. 30.340 − 99 =
31. 31.107 − 69 =
32. 32.544 − 69 =
33. 33.586 − 28 =
34. 34.280 − 78 =
35. 35.121 − 18 =
36. 36.522 − 99 =
37. 37.332 − 57 =
38. 38.379 − 29 =
39. 39.147 − 48 =
40. 40.186 − 39 =

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