Third-grade math takes students to the next level of math knowledge. They are expected to know addition, subtraction, multiplication, and division, and fact families. They need to use them in equations and two-step word problems. Additional math knowledge 3rd grades should know:
- Read and write large numbers through the hundred thousands, knowing the place value for each digit.
- Round and compare numbers.
- Understand equivalent fractions, be able to compare fractions, and change mixed numbers to improper fractions.
- Know decimals to the one-hundredth place.
- Use number lines.
- Recognize and write patterns.
- Do mental addition and subtraction.
- Add four-digit numbers.
- Subtract with regrouping.
- Know the time to the minute and elapsed time in minutes.
- Read and make graphs.
- Determine a shape’s perimeter and area.
- Recognize two-dimensional shapes.
- Measure with both Customary and Metric systems – length, weight, volume, and temperature.
- Multiply three and four-digit numbers.
- Divide two and three-digit dividends.
