Unit 3: Addition and Multiplication

Standards

NC.4.OA.3 Solve two-step word problems involving the four operations with whole numbers.

• Use estimation strategies to assess reasonableness of answers.
• Interpret remainders in word problems.
• Represent problems using equations with a letter standing for the unknown quantity.

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.

NC.4.NBT.5 Multiply a whole number of up to three digits by a one-digit whole number, and multiply up to two two-digit numbers with place value understanding using area models, partial products, and the properties of operations. Use models to make connections and develop the algorithm.

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.

Supporting Standards

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.