# NS. 1.5 – Use expanded form to represent numbers.  Define expanded form.  Define standard form.  Write numbers in expanded form.

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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. Expanded Form – pulling apart a number to show how much each digit represents. Hundreds Tens Ones 3,582

Thousands Hundreds Tens Ones

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

500 + 3,582 3,000500 Thousands Hundreds Tens Ones

80 + 3,582 Thousands Hundreds Tens Ones 3,000500 80

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

Steps for Writing Numbers in Expanded Form 1.Write the number 2.Write the number of blanks _____ + _____+_____+_____ 3.Write the value of each digit for each place. _____ + _____+_____+_____ 3, 522 20500 3,000 2

Step 1 – Write the number 347

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

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

Step 1 – Write the number 9,649

Step 2 – Write the number of blanks. ________ + ________+ ________ +_________ 9,649 ThousandsHundreds Tens Ones 9,000 600409

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

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

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 __________ + __________ + __________+ __________ 6,000 90 5900

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 ________ + ________+ ________ +_________ 7,000100809

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 3,00020052 ________ + ________+ ________ +_________

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. What happens if you have a number with a 0 in it? 701

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. ________+ ________ +_________ 7000 1 1 ________ +_________

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. 620 6000 20 ________+ ________ +_________ Your turn! ________+ ________ 600 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. 8,093 8,000 3 90 ________+ ________ +_________+________ Your turn! 0 ________+ ________ +__________ 8,000903

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. 5,203 5,0000200 ________+ ________ +_________+__________ Your turn! 3 ________+ ________ +_________ 5,000 2003

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

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

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