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Subtraction Shortcuts and Tips

Subtraction Shortcuts and Tips. By Monica Yuskaitis. Subtracting Across Zeros. 3 0 2 1 9 8. Step 1 – Borrow 1 from the 30. 3 0 2 1 9 8. Step 2 – Cross out the 30. 3 0 2 1 9 8. Step 3 – Write a 29 above the 30. 2 9. 3 0 2 1 9 8. Step 4 – Write a 1 in front of the 2. 2 9. 3 0 2

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Subtraction Shortcuts and Tips

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  1. Subtraction Shortcutsand Tips By Monica Yuskaitis

  2. Subtracting Across Zeros 3 0 2 1 9 8

  3. Step 1 – Borrow 1 from the 30 3 0 2 1 9 8

  4. Step 2 – Cross out the 30 3 0 2 1 9 8

  5. Step 3 – Write a 29 above the 30 2 9 3 0 2 1 9 8

  6. Step 4 – Write a 1 in front of the 2 2 9 3 0 2 1 9 8 1

  7. Step 5 – Subtract 8 from 12 2 9 3 0 2 1 9 8 1 4

  8. Step 6 – Subtract 9 from 9 2 9 3 0 2 1 9 8 1 0 4

  9. Step 7 – Subtract 1 from 2 29 3 0 2 1 9 8 1 1 0 4

  10. We’re Finished 29 3 0 2 1 9 8 1 1 0 4

  11. Second Example 8 0 0 2 3 7 6 5

  12. Step 1 – Borrow 1 from 800 8 0 0 2 3 7 6 5

  13. Step 2 – Cross out the 800 8 0 0 2 3 7 6 5

  14. Step 3 – Write 799 above the 800 7 9 9 8 0 0 2 3 7 6 5

  15. Step 4 – Write a 1 next to the 2 7 9 9 8 0 0 2 3 7 6 5 1

  16. Step 5 – Subtract 5 from the 12 7 9 9 8 0 0 2 3 7 6 5 1 7

  17. Step 6 – Subtract 6 from the 9 7 9 9 8 0 0 2 3 7 6 5 1 3 7

  18. Step 7 – Subtract 6 from the 9 7 9 9 8 0 0 2 3 7 6 5 1 2 3 7

  19. Step 7 – Subtract 3 from the 7 7 9 9 8 0 0 2 3 7 6 5 1 4 2 3 7

  20. We’re Finished 7 9 9 8 0 0 2 3 7 6 5 1 4 2 3 7

  21. It’s Your Turn 6 9 9 7 0 0 5 2 8 3 6 1 4 1 6 9

  22. It’s Your Turn Again 8 9 9 9 0 0 4 7 9 5 6 1 1 0 4 8

  23. Subtraction Tips

  24. Never subtract the top number from the bottom number 6 1 3 2 7 9 4 6 6 Your answer will always be wrong.

  25. Never borrow unless you need to 5 9 6 2 8 4 1 1 Your answer will always be wrong.

  26. Practice your subtraction facts 9 13 • 18 – 5 = • 18 – 3 = • 16 – 7 = • 14 – 6 = • 12 – 4 = • 11 – 7 = • 15 – 6 = • 9 – 5 = 11 15 • 18 – 9 = • 18 – 7 = • 16 – 8 = • 14 – 8 = • 12 – 9 = • 11 – 3 = • 15 – 7 = • 9 – 3 = 8 9 6 8 3 8 8 4 8 9 6 4

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