document.write( "Question 848676: write the number that makes each number sentence true.
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Algebra.Com's Answer #511235 by jim_thompson5910(35256) $\"\"$ $\"About$

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On the left side, the \"80+10\" will turn into 90 after you add 10 to 80.\r
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\n" ); document.write( "\n" ); document.write( "So \r
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\n" ); document.write( "\n" ); document.write( "80+10=90-______\r
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\n" ); document.write( "\n" ); document.write( "turns into\r
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\n" ); document.write( "\n" ); document.write( "90=90-______\r
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\n" ); document.write( "\n" ); document.write( "So a \"0\" must go in the blank because of the left side. If we use any other number, then 90 - \"some number that's not 0\" would change to something that's not 90.\r
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\n" ); document.write( "\n" ); document.write( "90 = 90-___0___\r
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\n" ); document.write( "\n" ); document.write( "and \r
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\n" ); document.write( "\n" ); document.write( "80+10 = 90-___0___ \n" ); document.write( "

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