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Comparing Lengths - Worksheet 10 - 1st Grade

Hard

Compare objects by length using longer, shorter, same (Hard)

18 problems · 10-15 minutes · Skills: measurement, comparison

About This Worksheet

This hard-level worksheet contains 18 problems designed for 1st Grade students practicing comparing lengths. Hard worksheets feature challenging problems including multi-step questions, missing values, and real-world applications to push students further.

Comparing lengths develops spatial reasoning and lays the groundwork for standard measurement units and more advanced geometry.

How to Solve: Worked Example

Example Problem: A is 14 cm. B is 9 cm. How much longer is A than B?
Solution Steps:
  1. Find the difference: 14 − 9.
  2. 14 − 9 = 5.
  3. A is 5 cm longer than B.
Answer: 5 cm
Tip: "How much longer" always means subtraction — subtract the shorter from the longer.
1
A is 13 cm. B is 9 cm. How much longer is A than B?
2
A is 17 cm. B is 15 cm. How much longer is A than B?
3
Order shortest to longest: 16, 12, 17, 12
4
A is 12 cm. B is 9 cm. How much longer is A than B?
5
A is 6 cm. B is 4 cm. How much longer is A than B?
6
A is 16 cm. B is 12 cm. How much longer is A than B?
7
A is 6 cm. B is 3 cm. How much longer is A than B?
8
Order shortest to longest: 11, 12, 7, 20
9
Order shortest to longest: 20, 9, 5, 20
10
A is 17 cm. B is 14 cm. How much longer is A than B?
11
Order shortest to longest: 22, 20, 10, 14
12
A is 13 cm. B is 12 cm. How much longer is A than B?
13
A is 9 cm. B is 6 cm. How much longer is A than B?
14
Order shortest to longest: 16, 21, 13, 12
15
Order shortest to longest: 21, 25, 9, 17
16
Order shortest to longest: 21, 9, 7, 24
17
A is 13 cm. B is 11 cm. How much longer is A than B?
18
A is 13 cm. B is 5 cm. How much longer is A than B?

Answer Key

1. 4 cm2. 2 cm3. 12, 12, 16, 174. 3 cm5. 2 cm6. 4 cm7. 3 cm8. 7, 11, 12, 209. 5, 9, 20, 2010. 3 cm11. 10, 14, 20, 2212. 1 cm13. 3 cm14. 12, 13, 16, 2115. 9, 17, 21, 2516. 7, 9, 21, 2417. 2 cm18. 8 cm

Frequently Asked Questions

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How many problems are on this worksheet?

This worksheet contains 18 problems. It typically takes 10-15 minutes to complete. An answer key with all solutions is included.