Measure the height of objects and answer questions about their relative sizes.

Let’s go step by step to solve each question. We’ll use the ruler shown in the image (which goes from 0 cm to 10 cm) to measure the height of each object.

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Step 1: How tall is the alien?

Look at the alien — its head reaches up to the 3 cm mark on the ruler.
✔ So, the alien is 3 cm tall.

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Step 2: Is the alien taller than the ladder?

The ladder goes all the way up to 8 cm.
Alien = 3 cm, Ladder = 8 cm → 3 < 8
So, the alien is NOT taller.
✔ Answer: no

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Step 3: How much shorter is the alien than the ladder?

Ladder = 8 cm, Alien = 3 cm
Subtract: 8 - 3 = 5 cm
✔ So, the alien is 5 cm shorter.

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Step 4: How tall is the tree?

The tree’s top reaches the 9 cm mark.
✔ So, the tree is 9 cm tall.

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Step 5: How tall is the pig?

The pig’s back reaches the 2 cm mark.
✔ So, the pig is 2 cm tall.

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Step 6: How much taller is the tree than the pig?

Tree = 9 cm, Pig = 2 cm
Subtract: 9 - 2 = 7 cm
✔ So, the tree is 7 cm taller.

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Step 7: How tall are the ladder and the tree altogether?

Ladder = 8 cm, Tree = 9 cm
Add them: 8 + 9 = 17 cm
✔ Total = 17 cm

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Final Answer:
- Alien height: 3 cm
- Is alien taller than ladder? no
- Alien shorter than ladder by: 5 cm
- Tree height: 9 cm
- Pig height: 2 cm
- Tree taller than pig by: 7 cm
- Ladder + tree total: 17 cm