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Comparing Lengths - Worksheet 8 - 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
Order shortest to longest: 22, 12, 6, 25
2
Order shortest to longest: 10, 5, 24, 9
3
A is 9 cm. B is 3 cm. How much longer is A than B?
4
Order shortest to longest: 23, 24, 7, 6
5
A is 20 cm. B is 14 cm. How much longer is A than B?
6
Order shortest to longest: 10, 11, 9, 14
7
Order shortest to longest: 25, 7, 11, 14
8
Order shortest to longest: 13, 17, 19, 22
9
Order shortest to longest: 23, 14, 25, 18
10
Order shortest to longest: 9, 6, 10, 14
11
Order shortest to longest: 7, 8, 6, 20
12
Order shortest to longest: 10, 16, 20, 9
13
A is 13 cm. B is 10 cm. How much longer is A than B?
14
A is 6 cm. B is 3 cm. How much longer is A than B?
15
A is 18 cm. B is 5 cm. How much longer is A than B?
16
Order shortest to longest: 16, 19, 9, 5
17
A is 14 cm. B is 4 cm. How much longer is A than B?
18
A is 11 cm. B is 4 cm. How much longer is A than B?

Answer Key

1. 6, 12, 22, 252. 5, 9, 10, 243. 6 cm4. 6, 7, 23, 245. 6 cm6. 9, 10, 11, 147. 7, 11, 14, 258. 13, 17, 19, 229. 14, 18, 23, 2510. 6, 9, 10, 1411. 6, 7, 8, 2012. 9, 10, 16, 2013. 3 cm14. 3 cm15. 13 cm16. 5, 9, 16, 1917. 10 cm18. 7 cm

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