Math With Mr DJ

Grade 3 · Measurement & Data · 3.MD.C.7

Area, Multiplication and Addition Worksheets

Download the practice worksheet free, with no sign-up. Problems climb from Mild to Spicy, with Mr DJ’s worked example to help you begin. Get the complete teaching materials in the paid lesson pack.

First page of the area, multiplication and addition practice worksheet Open the practice worksheet

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Practice prints on US Letter paper. Free for classroom and home use.

Teach it with Mr DJ

One topic. A complete lesson.

  • HomeworkIncluded
  • Exit ticketIncluded
  • Worked answer keyIncluded
  • Lesson slides PDFIncluded
  • Editable lesson slidesIncluded
  • Matching math gameIncluded
  • Build Confidence support guideIncluded
  • Go Deeper extensionIncluded

Print, project, edit and play. The matching game uses the same Math Crew and pepper levels.

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Key idea

connect tiled area to multiplication and add areas of disjoint rectangles.

Sample problems

  1. A rectangle is 3 cm by 4 cm. Tile or draw rows and find its area.
  2. A rectangle is 3 m by 6 m. Split the longer side into 4 m and 2 m. Find area.
  3. Two rectangles share only an edge: 3 by 4 units and 2 by 4 units. Find combined area.
  4. Draw an L-shape from a 5-by-2 rectangle and a 2-by-4 rectangle above one end. They share only an edge. Find area.

Common mistakes to watch for

  • Name the units. Use a picture or another calculation to check.

The answer key explains each one, so you can tell what a wrong answer means.

How to use this set

  1. Teach with the slides (about 15 minutes): a warm-up, the big ideas, a “spot the slip” challenge, Mr DJ’s worked example, and a pick-your-pepper round on whiteboards. Or watch the video together.
  2. Practice with the worksheet. Everyone does Mild and Medium, then climbs to Spicy and Extra Spicy.
  3. Check understanding with the exit ticket, and send the homework home.
  4. Mark with the answer key — each answer shows the steps and the most likely mistake. The slides’ teacher notes are in the key too.

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Daily math puzzlesSix new puzzles every day, mild to spicy. Great as a warm-up. Step-by-step videosFree math lessons on YouTube from Mr DJ.

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