This Grade 1 worksheet helps students practice comparing metric lengths through engaging word problems about rulers and pencil cases.

Let’s solve each question step by step.

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Question 1: Which ruler is the shortest?

Emma has three rulers:
- White ruler = 15 cm
- Yellow ruler = 25 cm
- Brown ruler = 10 cm

We compare the numbers:
10 < 15 < 25

So, the brown ruler (10 cm) is the shortest.

✔ Answer to Question 1: Brown ruler

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Question 2: Compared to the shortest ruler, how much longer is the longest ruler?

Shortest ruler = 10 cm (brown)
Longest ruler = 25 cm (yellow)

To find how much longer, subtract:
25 – 10 = 15 cm

✔ Answer to Question 2: 15 cm

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Question 3: Emma’s pencil case is 20 cm long. Which rulers cannot fit in her pencil case?

Pencil case length = 20 cm

Check each ruler:
- White ruler = 15 cm → 15 ≤ 20 → ✔ fits
- Yellow ruler = 25 cm → 25 > 20 → ✘ does NOT fit
- Brown ruler = 10 cm → 10 ≤ 20 → ✔ fits

Only the yellow ruler is too long.

✔ Answer to Question 3: Yellow ruler

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Final Answer:
1. Brown ruler
2. 15 cm
3. Yellow ruler