Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 892 · 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. 1.410 − 67 =
2. 2.447 − 38 =
3. 3.118 − 69 =
4. 4.378 − 47 =
5. 5.261 − 56 =
6. 6.496 − 87 =
7. 7.124 − 96 =
8. 8.483 − 87 =
9. 9.586 − 26 =
10. 10.138 − 56 =
11. 11.232 − 89 =
12. 12.240 − 27 =
13. 13.64 − 36 =
14. 14.550 − 96 =
15. 15.213 − 17 =
16. 16.147 − 67 =
17. 17.352 − 59 =
18. 18.284 − 89 =
19. 19.401 − 26 =
20. 20.513 − 28 =
21. 21.503 − 29 =
22. 22.126 − 36 =
23. 23.96 − 66 =
24. 24.506 − 78 =
25. 25.515 − 88 =
26. 26.568 − 49 =
27. 27.207 − 98 =
28. 28.86 − 29 =
29. 29.54 − 27 =
30. 30.432 − 69 =
31. 31.500 − 18 =
32. 32.454 − 46 =
33. 33.529 − 26 =
34. 34.180 − 76 =
35. 35.180 − 17 =
36. 36.317 − 16 =
37. 37.105 − 47 =
38. 38.386 − 87 =
39. 39.274 − 79 =
40. 40.174 − 57 =

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