Quizizz Volume Practice worksheet with questions on calculating the volume of rectangular prisms using unit cubes.

Let’s solve each question step by step.

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Question 1:

We are given a rectangular prism made of small cubes. Let’s count how many cubes there are in total — that will give us the volume in cubic units.

Looking at the shape:

- Length (how many cubes along the front): 4
- Width (how many cubes deep): 2
- Height (how many layers tall): 3

Volume = length × width × height
= 4 × 2 × 3
= 8 × 3
= 24

Since it’s volume, we use “cubic units”, not square units.

So the correct answer is 24 cubic units.

→ Option C

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Question 2:

This looks like a cube made of smaller cubes.

Count:

- Along one side: 3 cubes
- So it’s 3 × 3 × 3

Volume = 3 × 3 × 3 = 9 × 3 = 27

Again, volume → cubic units.

→ Option A: 27 cubic units

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Question 3:

This prism has colored blocks, but we just need to count total cubes.

Look at the base layer (bottom row):

- It’s 3 cubes long and 2 cubes wide → 3 × 2 = 6 cubes per layer

How many layers? We can see 2 layers (green on bottom, blue/red/yellow on top).

Wait — actually, looking carefully:

The figure shows:

- Bottom layer: green + yellow → 3 green + 1 yellow = 4? Wait, no — let’s think differently.

Actually, from the drawing:

It’s 3 cubes long, 2 cubes wide, and 2 cubes high.

Because:

- Front face: 3 across, 2 up → so height = 2
- Depth: you can see 2 rows going back (because of the colors — red/blue on top row, green/yellow below)

So dimensions: 3 (length) × 2 (width) × 2 (height)

Volume = 3 × 2 × 2 = 6 × 2 = 12

→ Option C: 12 cubic units

*(Note: Even though some cubes are different colors, they’re still part of the same solid — we count all of them.)*

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Question 4:

When you multiply length × width for a 3D figure, what do you get?

That gives you the area of the base of the figure.

For example, if you have a box sitting on a table, the part touching the table is the base — its area is length × width.

Then, to get volume, you multiply that base area by the height.

So: length × width = base (area of the base)

→ Option C: base

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Final Answer:

1. C
2. A
3. C
4. C