Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 476 · 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. 1.569 − 57 =
2. 2.392 − 46 =
3. 3.254 − 56 =
4. 4.569 − 86 =
5. 5.586 − 57 =
6. 6.557 − 29 =
7. 7.77 − 76 =
8. 8.358 − 68 =
9. 9.480 − 66 =
10. 10.562 − 17 =
11. 11.573 − 59 =
12. 12.376 − 19 =
13. 13.457 − 97 =
14. 14.161 − 78 =
15. 15.119 − 26 =
16. 16.331 − 58 =
17. 17.236 − 86 =
18. 18.335 − 16 =
19. 19.55 − 19 =
20. 20.422 − 97 =
21. 21.108 − 56 =
22. 22.121 − 97 =
23. 23.94 − 18 =
24. 24.270 − 68 =
25. 25.160 − 37 =
26. 26.478 − 98 =
27. 27.133 − 27 =
28. 28.177 − 27 =
29. 29.253 − 67 =
30. 30.481 − 29 =
31. 31.358 − 19 =
32. 32.410 − 57 =
33. 33.166 − 38 =
34. 34.367 − 76 =
35. 35.594 − 99 =
36. 36.161 − 18 =
37. 37.427 − 18 =
38. 38.258 − 18 =
39. 39.266 − 69 =
40. 40.59 − 49 =

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