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CCSS.Math:

compare the expressions on both sides of the question mark so on the left hand side of the question mark I have 7,000 I have seven thousand nine hundred and seven so it's seven thousand plus nine hundred plus seven which is going to be the same thing as seven thousand nine hundred and seven now let's compare that to what we have on the right-hand side of the question mark on the right hand side we have seven thousand plus nine hundred seventy which is seven thousand nine hundred and seventy or we could if we wanted expand it out we could write that as seven thousand plus 900 plus seventy and then we have zero ones so if we compare place value by place value we have seven thousand in either case so the thousands place is the same we have the same number of hundreds we have nine hundreds but here we have no tens and we have a seven and here we have no ones and we have seventy and clearly seventy is greater than seven so the number on the right is greater than the number on the left or the number on the left is less than less than the number on the right I always remember the less than symbol because it points to the smaller number or either of these symbols point to the smaller number so this right over here would mean greater than you have the larger number on the left this is less than you have the smaller number on the left so we would go with less than this is less than that