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PSEB Math Paper Set 1 2015.
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Think of a two digit number, say 42, then subtract the reverse of its digits, 24, from 42. Hence 18 is product of 9. Choose any two digits number and for each one reverse the digits and subtract the smaller number from the larger. Look at all the answers you get. Do they all have a common divisor? What do the digits sum to each time? Hence 63 is product of 9. Hence 27 is product of 9. Hence 45 is product of 9.
Students of GSSS PAU won Ist Position In district Ludhiana in Paper folding Competition of Maths. Matser Trainner Teaching In GGSSS Ajitsar Raikot. Activity by Students of GSSS Basti Jodhewal Ludhiana. Addition or Substraction on Number Line. Class room of GMS Gurusar Koonke.
PSEB Math Paper Set 1 2015.