CBSE Class 7 Mathematics — Chapter Summary

Large numbers appear in daily life in city populations, rice varieties, buses, hairs, stadium seating, soil organisms, and huge distances. The chapter builds number sense for lakhs, crores, millions, and arabs, and shows how to read, write, compare, estimate, and use large numbers in practical situa

Congruent figures have the same shape and the same size. They can be placed one over the other so that every part matches exactly. In triangles, congruence can be checked using fixed measurements such as three sides, two sides and the included angle, two angles and a side, or in special right triang

Arithmetic expressions are mathematical phrases that have a value. The value is the number the expression evaluates to. Expressions can be read, compared, and evaluated using numbers and operations. Brackets, terms, and the properties of addition help in reading complex expressions correctly.