Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 744 · 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. 1.452 − 69 =
2. 2.562 − 58 =
3. 3.553 − 29 =
4. 4.110 − 99 =
5. 5.179 − 98 =
6. 6.301 − 37 =
7. 7.584 − 88 =
8. 8.110 − 17 =
9. 9.342 − 88 =
10. 10.128 − 98 =
11. 11.150 − 29 =
12. 12.100 − 36 =
13. 13.99 − 38 =
14. 14.133 − 18 =
15. 15.246 − 87 =
16. 16.295 − 76 =
17. 17.140 − 38 =
18. 18.580 − 58 =
19. 19.469 − 26 =
20. 20.163 − 26 =
21. 21.316 − 16 =
22. 22.383 − 78 =
23. 23.124 − 86 =
24. 24.553 − 17 =
25. 25.296 − 77 =
26. 26.415 − 17 =
27. 27.171 − 79 =
28. 28.213 − 97 =
29. 29.594 − 47 =
30. 30.391 − 16 =
31. 31.67 − 16 =
32. 32.270 − 46 =
33. 33.74 − 18 =
34. 34.412 − 16 =
35. 35.512 − 29 =
36. 36.168 − 86 =
37. 37.187 − 16 =
38. 38.304 − 86 =
39. 39.150 − 69 =
40. 40.344 − 19 =

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