OBJECTIVES: At the end of the lesson, student should be ble to: .! .! Def"n Def"nee de#"$ de#"$ls ls b.! D"s#uss de#"$ls "n%ol%"n& $ult"'l"#t"on nd d"%"s"on #.! Sol%e '(oble$ '(oble$ss 'e(t"n"n& 'e(t"n"n& to to de#"$ls de#"$ls
B.! LESSON P*OPE* A de#"$l (efe(s to nu$be( tht "s +("tten +"th de#"$l 'o"nt 2 !. And no+ let3s '(o#eed to $ult"'l"#t"on. To $ult"'l $ult"'l t+o de#"$l nu$be(s, n u$be(s, $ult"'l s "f the (e +hole nu$be(s. Count the totl nu$be( of de#"$l de# "$l 'l#es of the $ult"'l"#nd nd $ult"'l"e(. Th"s su$ "s the nu$be( of the de#"$l 'l#es "n the '(odu#t. Pl#e de#"$l 'o"nt b #ount"n& the su$ of the de#"$l 'l#es f(o$ ("&ht to left. Let3s h%e n e4$'le
O let3s '(o#eed to d"%"s"on +"th de#"$l. To d"%"de de#"$l nu$be(s $o%e the de#"$l 'o"nt "n the d"%"so( unt"l "t be#o$es +hole nu$be(. Mo%e the de#"$l 'o"nt of the d"%"dend the s$e nu$be( of 'l#es s "n the d"%"so( to the ("&ht, dd"n& 5e(os "f ne#ess(. Pl#e the de#"$l 'o"nt "n the 6uot"ent d "(e#tl bo%e the ne+ de#"$l 'o"nt "n the d"%"dend. D"%"de the nu$be( s "f the (e +hole nu$be(s.
IV.
S)MMA*7 A de#"$l (efe(s to nu$be( tht "s +("tten +"th de#"$l ' o"nt. In the $ult"'l"#t"on, ou h%e to $ult"'l t+o de#"$l nu$be(s, $ult"'l "t s "f the (e
+hole nu$be(. If the '(odu#t "s l(ed done 'l#e the de#"$l 'o"nt ##o(d"n& to the de#"$l 'l#es. In the d"%"s"on, ou +"ll be ble to $o%e de#"$l 'o"nt "n the d"%"so( unt"l "t be#o$es +hole nu$be(. And d"%"de "t s "f the (e +hole nu$be(.
EN*IC8MENT: Sol%e ll the '(oble$s "n the to' of set of bo4es. E#h ns+e( "n the to' bo4es $t#hes n ns+e( "n the botto$ bo4es. D"s#o%e( the 6uest"on nd ns+e( b +("t"n& e#h +o(d f(o$ the to' set of bo4es "n the bo4 belo+ the $t#h"n& ns+e(. MA9E
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