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Sixth Grade Challenging Math

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6-6)  ABCD and MNOP are squares. M, N, O, and P are at the middle point of the 4 sides of square ABCD. If MN is 8 inches,

a) what is the area of square ABCD?

b) what is the area of triangle AMP?
               

                                                             

 

6-7)   Smart multiplications

        a) 39 x 5 x 20

        b) 25 x 125 x 32

                                                                       

 

6-8)  The area of the rectangle is 224 square inches. The length of the rectangle is 14 inches. What is the perimeter of the rectangle?

                                                 

 

 

6-9)  The area of the rectangle is 270 square inches. The length of the rectangle is 18 inches. What is the perimeter of the rectangle?

 

6-10)   Calculate

         a) 36.12 x 7.8

         b) 42.3 x 3.5

 

 

 

 

More challenging math problems for 6th grade:
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   81-90

 

 

 
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