exam Maths Puzzle Numerical Ability

Can someone help me with this problem?

I need to write the following number in expanded form:

684

Thank you,
Ashley

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exam Other Question

A triangular region has a perimeter of 66 meters. The first side is two-thirds of the second side. The third side is 14 meters shorter than the second side. What are the lengths of the three sides of the triangular region? hw do you seperate the a and x??

2-----------------2
A x +3 = 2 A