giúp giúp mình

1+1=2

Là bảng chữ cái

one là số 1

Nghĩa là trái đất

redhood có nghĩa là mũ trùm đỏ

Family is my home. There are three people in my family, my parents and me. My parents are Army soldiers working at the Capital Command. Although busy at the office, my parents still take care of me every little bit. I am the only son in the family. This year, I am in grade 2, Minh Khai primary school. I always try to study well to make my parents happy. I love my family very much. I hope my family is always filled with laughter.

Ta lấy ba cạnh cộng lại với nhau

H = chiều dài x chiều rộng

a) 1999 - 2000 + 1

= ( 1999 + 1 ) - 2000

= 2000 - 2000

= 0

b) 450 : 5 + 550 : 5

= ( 450 + 550 ) : 5 

= 1000 : 5

= 200

c) 188 x 7 + 188 x 4 - 188

= ( 7 + 4 - 1 ) x 188

= 10 x 188

= 1880