Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 794 · 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. 1.190 − 69 =
2. 2.357 − 58 =
3. 3.223 − 46 =
4. 4.389 − 37 =
5. 5.111 − 47 =
6. 6.503 − 38 =
7. 7.593 − 46 =
8. 8.529 − 26 =
9. 9.196 − 77 =
10. 10.155 − 87 =
11. 11.95 − 37 =
12. 12.350 − 38 =
13. 13.279 − 76 =
14. 14.208 − 26 =
15. 15.203 − 66 =
16. 16.539 − 28 =
17. 17.570 − 29 =
18. 18.153 − 68 =
19. 19.238 − 76 =
20. 20.510 − 27 =
21. 21.111 − 58 =
22. 22.98 − 66 =
23. 23.513 − 98 =
24. 24.231 − 78 =
25. 25.271 − 26 =
26. 26.130 − 27 =
27. 27.312 − 89 =
28. 28.139 − 69 =
29. 29.480 − 26 =
30. 30.104 − 17 =
31. 31.456 − 79 =
32. 32.228 − 26 =
33. 33.483 − 97 =
34. 34.209 − 97 =
35. 35.592 − 19 =
36. 36.144 − 99 =
37. 37.542 − 86 =
38. 38.414 − 67 =
39. 39.264 − 66 =
40. 40.225 − 38 =

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