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NS. 1.5 – Use expanded form to represent numbers.

NS. 1.5 – Use expanded form to represent numbers. Define expanded form. Define standard form. Write numbers in expanded form. Place Value – the value of where a digit is in the number, such as ones, tens, hundreds. Standard Form – a way of writing numbers using digits.

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NS. 1.5 – Use expanded form to represent numbers.

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  1. NS. 1.5 – Use expanded form to represent numbers. • Define expanded form. • Define standard form. • Write numbers in expanded form.

  2. Place Value – the value of where a digit is in the number, such as ones, tens, hundreds. Standard Form – a way of writing numbers using digits. Expanded Form – pulling apart a number to show how much each digit represents. Hundreds Tens Ones 3,582

  3. Thousands Hundreds Tens Ones 3,582

  4. Thousands Hundreds Tens Ones 3,582 3,000 + 3,000

  5. Thousands Hundreds Tens Ones 3,582 500+ 3,000 500

  6. Thousands Hundreds Tens Ones 3,582 80 + 80 3,000 500

  7. 3,582 Thousands Hundreds Tens Ones 2 80 500 2 3,000

  8. Steps for Writing Numbers in Expanded Form • Write the number • Write the number of blanks • _____ + _____+_____+_____ • Write the value of each digit for each place. • _____ + _____+_____+_____ 3, 522 500 20 2 3,000

  9. Step 1 – Write the number 347

  10. Step 2 – Write the number of blanks. 347 __________ + __________ + __________

  11. Step 3 – Write the value of each digit for each place 347 Hundreds Tens Ones 300 40 7 __________ + __________+ __________

  12. Step 1 – Write the number 9,649

  13. Step 2 – Write the number of blanks. 9,649 Thousands Hundreds Tens Ones 600 40 9 9,000 ________ + ________+ ________ +_________

  14. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. 437 30 400 7 __________ + __________+ __________

  15. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. 781 80 700 1 __________ + __________+ __________

  16. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. 6, 995 90 6,000 900 5 __________ + __________ + __________+ __________

  17. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. 7,189 7,000 100 80 9 ________ + ________+ ________ +_________

  18. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. 3,252 3,000 200 5 2 ________ + ________+ ________ +_________

  19. What happens if you have a number with a 0 in it? 701 Still the same 3 steps, but we have to add one more! Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. Step 4 – If there is a 0, rewrite the number leaving the 0 out.

  20. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. Step 4 – If there is a 0, rewrite the number leaving the 0 out. 701 ________+ ________ +_________ 1 700 0 ________+ ________ +_________ 1 700 ________ +_________

  21. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. Step 4 – If there is a 0, rewrite the number leaving the 0 out. Your turn! 620 20 600 0 ________+ ________ +_________ 20 600 ________+ ________

  22. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. Step 4 – If there is a 0, rewrite the number leaving the 0 out. Your turn! 8,093 8,000 0 90 3 ________+ ________ +_________+________ 8,000 90 3 ________+ ________ +__________

  23. Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. Step 4 – If there is a 0, rewrite the number leaving the 0 out. Your turn! 5,203 5,000 200 0 3 ________+ ________ +_________+__________ 200 3 5,000 ________+ ________ +_________

  24. Partner Practice Step 1 – Write the number. Step 2 – Write the number of blanks. Step 3 – Write the value of each digit for each place. Be careful!! There are four extra numbers that are meant to be tricky!

  25. The expanded form of __________ is ___ + __ + __ +___.

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