12,345 = (1 x 10000) + (2 x 1000) + (3 x 100) + (4 x 10) + (5 x 1) OR (1 x 104) + (2 x 103) + (3 x 102) + (4 x 101) + (5 x 100)
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Expanded notation is when you write a number to show each digit's value. For example, you would write 5329 as 5000+300+20+9.
expanded notation
In expanded form, the number 74 is written as 70 + 4. This representation breaks down the number into its place values, with 70 representing the tens place and 4 representing the ones place. Expanded form is a way to show the value of each digit in a number based on its place value within the number.
On digit (not didgit!).
To write 3,005,480 in expanded form, break it down by place value: 3,000,000 + 0 + 5,000 + 400 + 80. This shows the value of each digit based on its position in the number.