Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 937 · 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. 1.274 − 67 =
2. 2.316 − 16 =
3. 3.308 − 66 =
4. 4.69 − 46 =
5. 5.499 − 79 =
6. 6.280 − 96 =
7. 7.558 − 58 =
8. 8.191 − 27 =
9. 9.136 − 68 =
10. 10.211 − 87 =
11. 11.547 − 46 =
12. 12.237 − 76 =
13. 13.163 − 18 =
14. 14.281 − 26 =
15. 15.432 − 46 =
16. 16.160 − 58 =
17. 17.67 − 48 =
18. 18.559 − 27 =
19. 19.266 − 79 =
20. 20.528 − 19 =
21. 21.254 − 48 =
22. 22.516 − 87 =
23. 23.413 − 86 =
24. 24.173 − 49 =
25. 25.93 − 38 =
26. 26.388 − 97 =
27. 27.195 − 26 =
28. 28.374 − 26 =
29. 29.277 − 16 =
30. 30.510 − 47 =
31. 31.246 − 87 =
32. 32.76 − 68 =
33. 33.352 − 69 =
34. 34.535 − 39 =
35. 35.542 − 48 =
36. 36.65 − 19 =
37. 37.133 − 19 =
38. 38.284 − 56 =
39. 39.349 − 86 =
40. 40.349 − 78 =

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