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	1.	Simplifying mathematical challenges grade 5/ Erminda E. De Leon, Amelia F. Lopez. by De Leon, Erminda E [author.] Sosa, Jaimena C [editor.] Ortiz, Sylvia C [editor.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: Marikina City: InstructionalCoverage System Publishing, Inc., 2012 Availability: Items available for loan: Grade School Library (1)Call number: FIL 510 L86 2012. Place hold Add to cart (remove)
	2.	Math in a challenging world teacher's guide 5/ Erminda E. De Leon. by De Leon, Erminda E [Author.] Lopez, Amelia F [Coordinator.] Canonigo, Allan M [Editor.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: Marikina City : Instructional Coverage System Publishing, Inc., 2017 Availability: Items available for loan: Grade School Library (1)Call number: FIL 510 D346m 2017. Place hold Add to cart (remove)

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