We use math every day., People use addition and subtraction when they buy and sell things., Your parents use math when they buy food and clothes for you, so they know how much money they need., You use math to keep score when you play a game with your friends.

Bảng xếp hạng

Phong cách trực quan

Tùy chọn

Chuyển đổi mẫu

Bạn có muốn khôi phục tự động lưu: không?