# Sarin learns Perimeter, Area and Volume in school part 98 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can acquire the skill of dealing with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Shapes and Volume.

You can read posting Sarin learns Perimeter, Area and Volume in school(Math Concept) to learn the concept of perimeter and area.

Read also the posting on Sarin learns Shapes and Solids in school (Math Concept) to know about shapes.

Challenge yourself with the question before look out for the given solution‼!

Upper primary school mathematics question UPQ434

The figure below is made up by stacking of 2-cm cubes. How many more cubes are needed to form a cube of volume 216 cm3?

Solution:

The Area of a 2-cm cube = 2 × 2 × 2 = 8 cm3

The number of 2-cm cube required to form a 216 cm3 cube = 216 ÷ 8 = 27

The number of 2-cm cubes in the figure by counting = 9

The number of additional 2-cm cubes required = 27 – 9 = 18