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3rd grade

Course: 3rd grade > Unit 11

Lesson 1: Perimeter
Math
3rd grade
Perimeter
Perimeter
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Find perimeter by counting units

CCSS.Math: 3.MD.D.8
Google Classroom

Problem

Each square on the grid is 1 unit square.
A rectangle with 5 rows and 4 columns of 20 unit squares connected together on a grid.
What is the perimeter of the shaded rectangle?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
units
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