document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=831399>Question 831399</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this sum: add 19m55cm,25m 45cm and 79 cm. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #501293 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=501293\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The metric system of units makes subunits easy.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   DISABLED_style= \"max-width:90%; height:auto;\" > cm (centimeter) is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F100 ALIGN=MIDDLE  ALT=\"1%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" > of a meter (0.01m), so<BR>\n" );
document.write( "55 cm = 0.55 m, 45 cm = 0.45 m, and 79 cm = 0.79 m.<BR>\n" );
document.write( "So 19 meters and 55 centimeters (19m55cm) is 19.55 meters, and<BR>\n" );
document.write( "25 meters and 45 centimeters (25m45cm) is 25.45 meters.<BR>\n" );
document.write( "We can add all the quantities in meters to get an answer in meters.<BR>\n" );
document.write( "19.55 + 25.45 + 0.79 = 45.79<BR>\n" );
document.write( "They add up to 45.79 meters, so the answer is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%2245.79+m%22%29 ALIGN=MIDDLE  ALT=\"highlight%28%2245.79+m%22%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Do not forget to show the units in the answer, and if the teacher wanted it expressed that way, the answer can be given as 45m79cm.<BR>\n" );
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document.write( "NOTES:<BR>\n" );
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document.write( "1) This could be a mental math problem.<BR>\n" );
document.write( "Since 45+55=100, when adding in our head, we know that the 0.45+0.55=1.00 decimal parts of the first 2 numbers add to 1.00 (one whole meter).<BR>\n" );
document.write( "That tells us that the first 2 numbers (18.55+25.45) add up to<BR>\n" );
document.write( "19+1+25=(19+1)+25=20+25=45.<BR>\n" );
document.write( "That's easy to do without pencil and paper or calculator.<BR>\n" );
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document.write( "2) Some teacher could insist in seeing units shown throughout the problem, and would require that you write the sum as<BR>\n" );
document.write( "19.55m + 25.45m + 0.79m = 45.79m<BR>\n" );
document.write( "Then, adding 79cm (0.79m) to 45.00m, we get 45.79m. </SPAN>\n" );
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