



 
Hi Ken, The key here is to start as far inside the brackets and parentheses as you can. You have an expression inside brackets "[...]" and the inside this is a pair of parentheses "(...)" so that is where you start. $90 + 36  4 = 122$ so your expression reduces to $[122 \div 2] \times 15.$ Now you have brackets and inside the brackets is $122 \div 2 = 61.$ Finally you have $61 \times 15$ so the result is the answer to $[(90+364) \div 2] \times15.$ Penny  


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