Grade 4 Math Curriculum in North America: What Children Learn

Grade 4 is when children take everything they learned about single-digit operations and scale it up to multi-digit work. It is also the year long division shows up — a rite of passage that still trips up a lot of otherwise confident mathematicians.

Multi-digit operations

• Adding and subtracting multi-digit whole numbers fluently.
• Multiplying up to 4-digit by 1-digit numbers.
• Multiplying 2-digit by 2-digit numbers.
• Dividing up to 4-digit by 1-digit numbers with remainders.
• Understanding the relationship between multiplication and division.

Place value

• Place value to 1,000,000.
• Reading and writing large numbers in standard, expanded, and word form.
• Comparing, rounding, and ordering multi-digit numbers.

Fractions

• Equivalent fractions and simplifying.
• Comparing fractions with unlike denominators using benchmarks.
• Adding and subtracting fractions with like denominators.
• Multiplying a fraction by a whole number.

Introduction to decimals

• Understanding tenths and hundredths as fractions.
• Writing fractions with denominators 10 and 100 as decimals.
• Comparing decimals to hundredths.

Geometry and measurement

• Classifying shapes by properties of their lines and angles.
• Measuring angles in degrees.
• Solving area and perimeter problems.
• Converting between units within the same measurement system.

Where Grade 4 students get stuck

Long division and multi-digit multiplication are the two big sticking points. Both are heavily dependent on knowing multiplication facts automatically. If your child is struggling here, the first thing to check is not the division algorithm — it is whether they actually know 7 × 8 without thinking. Fluency gaps make every multi-step problem feel impossible.