4th Grade Math

1. Area

NC.4.MD.3 Solve problems with area and perimeter.
• Find areas of rectilinear figures with known side lengths.
• Solve problems involving a fixed area and varying perimeters and a fixed perimeter and varying areas. 

• Apply the area and perimeter formulas for rectangles in real world and mathematical problems.

Find the total area of a rectangle or square:

Find a missing side length when given the total area of a rectangle:

2. Perimeter

NC.4.MD.3 Solve problems with area and perimeter.
• Find areas of rectilinear figures with known side lengths.
• Solve problems involving a fixed area and varying perimeters and a fixed perimeter and varying areas. 

• Apply the area and perimeter formulas for rectangles in real world and mathematical problems.

Perimeter of a shape:

Perimeter with missing side lengths:

PERIMETER AND AREA GAMES:

https://www.roomrecess.com/mobile/GeoTombs/play.html

https://mrnussbaum.com/zoo-designer-online-game 

3. Points, Lines, Rays, Angles

NC.4.G.1 Draw and identify points, lines, line segments, rays, angles, and perpendicular and parallel lines.

4. Place Value

NC.4.NBT.1 Explain that in a multi-digit whole number, a digit in one place represents 10 times as much as it represents in the place to its right, up to 100,000. 

NC.4.NBT.2 Read and write multi-digit whole numbers up to and including 100,000 using numerals, number names, and expanded form.

PLACE VALUE GAME - https://www.roomrecess.com/mobile/SnowPatrol/play.html 

5. Compare Whole Numbers

NC.4.NBT.7 Compare two multi-digit numbers up to and including 100,000 based on the values of the digits 

6. Add & Subtract Whole Numbers

NC.4.NBT.4 Add and subtract multi-digit whole numbers up to and including 100,000 using the standard algorithm with place value understanding. 

Addition with regrouping:

Subtraction with Regrouping:

7. Multiplication as a Comparison

NC.4.OA.1 Interpret a multiplication equation as a comparison. Multiply or divide to solve word problems involving multiplicative comparisons using models and equations with a symbol for the unknown number. Distinguish multiplicative comparison from additive comparison.

8. Multiplication & Division in Word Problems

NC.4.OA.1 Interpret a multiplication equation as a comparison. Multiply or divide to solve word problems involving multiplicative comparisons using models and equations with a symbol for the unknown number. Distinguish multiplicative comparison from additive comparison. 

IXL Multiplicative Comparison Practice

Compare numbers using multiplication: word problems