Sure thing, honey. 20 million 5 hundred thousand in expanded notation using exponents is 2 x 10^7 + 5 x 10^5. Just break down the numbers and slap those exponents on 'em like it's nobody's business. Easy peasy lemon squeezy.
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Write the number in standard from and in expanded nothion
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Four million, twenty thousand, thirty.
Oh, dude, like, expanded notation is just a fancy way of breaking down a number into its different place values. So, for 1183541029, you'd write it as 1 billion + 1 hundred million + 8 ten million + 3 million + 5 hundred thousand + 4 ten thousand + 1 thousand + 0 hundreds + 2 tens + 9 ones. Easy peasy!
I would say they are in standard form, but I would be more likely just to ask you to write a simplified number without using exponents. The terminology can vary, but the following example shows the usual names: 1,023 is in standard form. One thousand twenty-three is in word form. 1000 + 20 + 3 is in expanded form.
7.3 × 104
2,002,000 = (2 x 1000000) + (0 x 100000) + (0 x 10000) + (2 x 1000) + (0 x 100) + (0 x 10) + (0 x 1)
15,729 =(1 x 104) + (5 x 103) + (7 x 102) + (2 x 101) + (9 x 100) or(1 x 10000) + (5 x 1000) + (7 x 100) + (2 x 10) + (9 x 1) orFifteen thousand, seven hundred twenty-nine