Mathematics

Mathematics — Grade 4

American Curriculum · Ages 9-10

Grade 4 extends multiplication to multi-digit numbers and introduces long division. Fractions become more demanding: understanding equivalence, comparing fractions with different denominators, and adding/subtracting fractions with the same denominator. Decimal notation for fractions is introduced.

Geometry covers angle measurement and classification, and students identify factors and multiples of whole numbers — early number theory that supports later fraction work.

Key topics covered

• Multi-Digit Multiplication & Division — Standard algorithms for larger numbers.
• Fraction Equivalence — Comparing fractions with different denominators; adding same-denominator fractions.
• Decimals — Decimal notation for fractions, introduced through tenths and hundredths.
• Angles & Geometry — Measuring and classifying angles.
• Factors & Multiples — Identifying factors and multiples of whole numbers.