Kindergarten · Math

Compare lengths using the same unit

Compare two lengths measured with identical informal units.

6 authored questions + worked example

Worked example

Two ribbons are measured with the same size blocks. Ribbon A is 3 blocks long; ribbon B is 5 blocks long. Which ribbon is longer?

Answer & why

Answer: B

5 is greater than 3, so ribbon B is longer when both use the same unit.

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All questions

All 6 authored questions for this skill.

Question 1

Two ribbons are measured with the same size blocks. Ribbon A is 2 blocks long; ribbon B is 6 blocks long. Which ribbon is longer?

  1. A
  2. Their colors decide.
  3. They are equally long.
  4. B
A hint

Line up one end and use the same size measuring unit for both lengths.

Answer & why

Answer: B

6 is greater than 2, so ribbon B is longer when both use the same unit.

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Question 2

Two ribbons are measured with the same size blocks. Ribbon A is 8 blocks long; ribbon B is 5 blocks long. Which ribbon is longer?

  1. They are equally long.
  2. B
  3. A
  4. Their colors decide.
A hint

Line up one end and use the same size measuring unit for both lengths.

Answer & why

Answer: A

8 is greater than 5, so ribbon A is longer when both use the same unit.

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Question 3

Two ribbons are measured with the same size blocks. Ribbon A is 4 blocks long; ribbon B is 9 blocks long. Which ribbon is longer?

  1. Their colors decide.
  2. They are equally long.
  3. B
  4. A
A hint

Line up one end and use the same size measuring unit for both lengths.

Answer & why

Answer: B

9 is greater than 4, so ribbon B is longer when both use the same unit.

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Question 4

Two ribbons are measured with the same size blocks. Ribbon A is 6 blocks long; ribbon B is 3 blocks long. Which ribbon is longer?

  1. Their colors decide.
  2. They are equally long.
  3. A
  4. B
A hint

Line up one end and use the same size measuring unit for both lengths.

Answer & why

Answer: A

6 is greater than 3, so ribbon A is longer when both use the same unit.

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Question 5

Two ribbons are measured with the same size blocks. Ribbon A is 3 blocks long; ribbon B is 5 blocks long. Which ribbon is longer?

  1. They are equally long.
  2. A
  3. B
  4. Their colors decide.
A hint

Line up one end and use the same size measuring unit for both lengths.

Answer & why

Answer: B

5 is greater than 3, so ribbon B is longer when both use the same unit.

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Question 6

Two ribbons are measured with the same size blocks. Ribbon A is 7 blocks long; ribbon B is 4 blocks long. Which ribbon is longer?

  1. They are equally long.
  2. A
  3. Their colors decide.
  4. B
A hint

Line up one end and use the same size measuring unit for both lengths.

Answer & why

Answer: A

7 is greater than 4, so ribbon A is longer when both use the same unit.

Add to plan