Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 297 · 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. 1.322 − 76 =
2. 2.95 − 46 =
3. 3.206 − 78 =
4. 4.169 − 59 =
5. 5.559 − 37 =
6. 6.109 − 49 =
7. 7.262 − 89 =
8. 8.98 − 69 =
9. 9.294 − 69 =
10. 10.245 − 76 =
11. 11.396 − 86 =
12. 12.314 − 39 =
13. 13.135 − 98 =
14. 14.237 − 97 =
15. 15.252 − 36 =
16. 16.70 − 69 =
17. 17.518 − 26 =
18. 18.243 − 59 =
19. 19.573 − 16 =
20. 20.423 − 28 =
21. 21.595 − 39 =
22. 22.450 − 57 =
23. 23.446 − 36 =
24. 24.385 − 87 =
25. 25.423 − 57 =
26. 26.93 − 87 =
27. 27.113 − 28 =
28. 28.458 − 18 =
29. 29.175 − 69 =
30. 30.392 − 46 =
31. 31.227 − 56 =
32. 32.586 − 86 =
33. 33.175 − 76 =
34. 34.424 − 98 =
35. 35.102 − 58 =
36. 36.244 − 96 =
37. 37.425 − 59 =
38. 38.397 − 16 =
39. 39.165 − 79 =
40. 40.384 − 68 =

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