Primary 6 · Volume · Question type 7.1
Find the base area of the cuboid, then multiply it by the height to calculate the volume.
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Primary 6, on the MOE Primary Mathematics syllabus.
The lesson · 2 minutes 20 seconds
Watch: how much space is inside a box 8 cm by 5 cm by 3 cm
Another worked example
A rectangular block measures 72 cm by 30 cm by 18 cm. From the top of each short end, a slab measuring 12 cm by 30 cm by 6 cm is trimmed off, leaving a lower ledge at each end. Find the volume of the block that is left.
The working · Four lines
Written out in full, the way it should appear on paper.
The answer is 34560 cm³.
Practise · Modelled on top school exam questions
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Try it yourself
Find each cuboid's volume, then add the parts.
A solid is made from two rectangular boxes joined together, as shown. The lower box measures 14 cm by 10 cm and is 6 cm high. The upper box measures 14 cm by 5 cm and is 4 cm high, standing on the right-hand half of the lower box's top face. Find the volume of the solid.
Ans: 1120 cm³
The practice plan adds more questions and saved progress.
Next, compare different views of a solid made of unit cubes. Finding a Cuboid Dimension from Its Volume →