1.Hỏi:

a,cạnh BM vuông góc các cạnh nào?

c,tính diện tích mỗi hình chữ nhật 1 2 3

Fill in the blank with the suitable number
Question 1:
Fill missing number in the blank
41165+23042=23042+
Question 2:
Fill missing number in the blank
54723+
=27849+54723
Question 3:
Calculate: 4159+2615+421=
Question 4:
The sum of two numbers is 98 and their difference is 24. The greater number is 
Question 5:
If a square has one side’s length is 12cm then its perimeter is 
cm
Question 6:
Find the value of 2356+a-b for a=1482, b=3105
Answer: 
Question 7:
Think of a number that if you add 720 to it the answer will be 1427. The number is 
Question 8:
If the perimeter of a square is 104m then its one side’s length is 
m
Question 9:
I am an even 2-digit number. The sum of my tens digit and my ones digit is 11 and their difference is 5. Who am I?
Answer: 
Question 10:
The perimeter of a rectangle is 72cm and its length is 12cm more than its width. Its length is 
cm

Fill in the blank with the suitable number

Question 1:
Fill missing number in the blank
41165+23042=23042+

Question 2:
Fill missing number in the blank
54723+=27849+54723

Question 3:
Calculate: 4159+2615+421=

Question 4:
The sum of two numbers is 98 and their difference is 24. The greater number is 

Question 5:
If a square has one side’s length is 12cm then its perimeter is cm

Question 6:
Find the value of 2356+a-b for a=1482, b=3105
Answer: 

Question 7:
Think of a number that if you add 720 to it the answer will be 1427. The number is 

Question 8:
If the perimeter of a square is 104m then its one side’s length is m

Question 9:
I am an even 2-digit number. The sum of my tens digit and my ones digit is 11 and their difference is 5. Who am I?
Answer: 

Question 10:
The perimeter of a rectangle is 72cm and its length is 12cm more than its width. Its length is