Explain how you can use mental math to compare 175 ounces to 11 pounds

We just need to find out how many ounces are in one pound. 

16 ounces = 1 pound

11*16 = 176

176 ounces and 175 ounces, they are about the same amount. 

Well 16 ounces are in a pound so just think about what time 16 gets you to exactly 175 or close to 175 most likely you number will be 11

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