Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 295 · 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. 1.350 − 88 =
2. 2.390 − 28 =
3. 3.208 − 47 =
4. 4.369 − 86 =
5. 5.432 − 26 =
6. 6.512 − 18 =
7. 7.180 − 46 =
8. 8.577 − 87 =
9. 9.230 − 29 =
10. 10.251 − 79 =
11. 11.221 − 36 =
12. 12.131 − 59 =
13. 13.379 − 98 =
14. 14.571 − 77 =
15. 15.374 − 39 =
16. 16.573 − 19 =
17. 17.68 − 37 =
18. 18.159 − 26 =
19. 19.92 − 79 =
20. 20.169 − 68 =
21. 21.477 − 36 =
22. 22.166 − 69 =
23. 23.339 − 36 =
24. 24.115 − 27 =
25. 25.173 − 88 =
26. 26.233 − 56 =
27. 27.161 − 99 =
28. 28.591 − 78 =
29. 29.362 − 16 =
30. 30.433 − 97 =
31. 31.183 − 36 =
32. 32.175 − 28 =
33. 33.486 − 36 =
34. 34.201 − 67 =
35. 35.500 − 28 =
36. 36.572 − 49 =
37. 37.406 − 17 =
38. 38.404 − 46 =
39. 39.242 − 16 =
40. 40.187 − 39 =

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