Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 402 · 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. 1.133 − 56 =
2. 2.153 − 58 =
3. 3.204 − 96 =
4. 4.236 − 96 =
5. 5.526 − 67 =
6. 6.393 − 66 =
7. 7.249 − 18 =
8. 8.378 − 27 =
9. 9.488 − 19 =
10. 10.115 − 37 =
11. 11.147 − 26 =
12. 12.348 − 66 =
13. 13.199 − 17 =
14. 14.505 − 66 =
15. 15.113 − 36 =
16. 16.388 − 59 =
17. 17.315 − 39 =
18. 18.150 − 57 =
19. 19.115 − 57 =
20. 20.467 − 37 =
21. 21.258 − 28 =
22. 22.140 − 68 =
23. 23.116 − 29 =
24. 24.323 − 59 =
25. 25.486 − 68 =
26. 26.142 − 77 =
27. 27.148 − 26 =
28. 28.76 − 58 =
29. 29.147 − 37 =
30. 30.593 − 36 =
31. 31.270 − 39 =
32. 32.314 − 77 =
33. 33.599 − 46 =
34. 34.339 − 38 =
35. 35.488 − 27 =
36. 36.153 − 58 =
37. 37.582 − 29 =
38. 38.126 − 86 =
39. 39.493 − 48 =
40. 40.75 − 16 =

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