a. Số nguyên dương nhỏ nhất là 1

=> x + 4 = 1

=> x = 1 - 4

=> x = -3

b. Số nguyên âm lớn nhất là -1

=> 10 - x = -1

=> x = 10 - (-1)

=> x = 10 + 1

=> x = 11

Read and tick true (T) or false (F)

My name is Nam. I’m in class 5B, Nguyen Du primary school. My school year started in August. I go to school every day except Saturday and Sunday. I have four lessons a day. Today is Wednesday I have Maths, Vietnamese, Music and English. I have Maths and Vietnamese every school day. I have Music once a week and English four times a week.

Question. He has Maths and Vietnamese every school day.

A. True

B. False