You may also see "nets" that fold into 3D shapes. For example, a net that folds into a cuboid has a volume of
Kaur, B. (2019). The Singapore Mathematics Curriculum . World Scientific. Ministry of Education, Singapore. (2021). Primary Mathematics Teaching Guide 5 . Yeap, B. H. (2017). Concrete-Pictorial-Abstract in Primary Mathematics . Marshall Cavendish. Modern Primary Mathematics Workbook 5d Answers
: Advanced operations, including division and mixed arithmetic operations of fractions. You may also see "nets" that fold into 3D shapes