TY  - BOOK
AU  - Belit, Stephainey K., jt.a
AU  - Pallay, Analyn S., jt.a
AU  - Tomilas, Camille S., jt.a
TI  - Improving skill in finding the missing number in an equation through cross-number puzzler among grade 4 pupils of KAsibu Central School
KW  - Cross-number puzzle
KW  - Equation
KW  - Mathematics skill
N1  - Undergraduate Thesis (BEED) - Nueva Vizcaya State University; Includes appendices & bibliography
ER  -