Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 761 · 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. 1.236 − 37 =
2. 2.298 − 37 =
3. 3.432 − 57 =
4. 4.94 − 56 =
5. 5.156 − 39 =
6. 6.309 − 76 =
7. 7.476 − 16 =
8. 8.250 − 97 =
9. 9.288 − 36 =
10. 10.510 − 96 =
11. 11.519 − 68 =
12. 12.457 − 38 =
13. 13.559 − 79 =
14. 14.277 − 29 =
15. 15.76 − 59 =
16. 16.274 − 36 =
17. 17.581 − 27 =
18. 18.55 − 19 =
19. 19.112 − 18 =
20. 20.458 − 68 =
21. 21.177 − 79 =
22. 22.470 − 98 =
23. 23.224 − 28 =
24. 24.415 − 58 =
25. 25.183 − 39 =
26. 26.61 − 59 =
27. 27.60 − 47 =
28. 28.124 − 76 =
29. 29.489 − 38 =
30. 30.58 − 28 =
31. 31.377 − 27 =
32. 32.469 − 89 =
33. 33.205 − 79 =
34. 34.175 − 79 =
35. 35.284 − 39 =
36. 36.157 − 58 =
37. 37.307 − 16 =
38. 38.223 − 57 =
39. 39.299 − 87 =
40. 40.137 − 69 =

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