Học toán

Fill in the blank with the suitable number
Question 1: Calculate: 91625 – 27356= 

Question 2: Fill missing number in the blank 54723+
=27849+54723
Question 3: Calculate: 4159+2615+421=

Question 4: Fill missing number in the blank  (32514+16257)+23459=
+(16257+23459)
Question 5: If the perimeter of a square is 104m then its one side’s length is 
m
Question 6: A book store has 50 exercise books, 60 text books and 36 novels. The sum of books in the store is 

Question 7: If a square has one side’s length is 12cm then its perimeter is 
cm
Question 8: Find the value of 2356+a-b for a=1482, b=3105 Answer: 

Question 9: I am an odd 2-digit number. The sum of my tens digit and my ones digit is 7 and their difference is 5. Who am I? Answer: 

Question 10: 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: 










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