Question
A base-ten numeral has the digits $\underline{A} \underline{B} \underline{C} \underline{D}$. Write this numeral using expanded notation.
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Key Concepts
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Our system of numeration is called a decimal system. In a whole number such as $2846,$ each digit is understood to represent the number of powers of 10 for its place value. The $\left.2 \text { represents two thousands }\left(2 \times 10^{3}\right), \text { the 8 represents eight hundreds ( } 8 \times 10^{2}\right),$ the $\left.4 \text { represents four tens }\left(4 \times 10^{1}\right), \text { and the 6 represents six ones (or units) ( 6 } \times 10^{\circ}\right)$. $2846=\left(2 \times 10^{3}\right)+\left(8 \times 10^{2}\right)+\left(4 \times 10^{1}\right)+\left(6 \times 10^{0}\right)$ Write your answer from Exercise 39 in expanded form.
Exponents and Polynomials
Dividing Polynomials
Write each number in expanded form. $$3,519,807$$
Whole which of Numbers
An Introduction to the Whole Numbers
Numbers can also be expressed in expanded form. Example $1: 13,548=10,000+3000+500+40+8$ $=\left(1 \times 10^{4}\right)+\left(3 \times 10^{3}\right)+\left(5 \times 10^{2}\right)+\left(4 \times 10^{1}\right)+\left(8 \times 10^{0}\right)$ Example $2: 0.568=0.5+0.06+0.008$ $$ =\left(5 \times 10^{-1}\right)+\left(6 \times 10^{-2}\right)+\left(8 \times 10^{-3}\right) $$ Write each number in expanded form. $$29,607$$
Factors and Fractions
Negative Exponents
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