<human>:  One meatball sub sandwich contains 4 meatballs. Sidney ordered 3 less than ten meatball sub sandwiches. Then Mark ate 4 of Sidney's meatball sub sandwiches. So Sidney ordered another three sub sandwiches. How many meatballs were in the sub sandwiches that remained?
<bot>: How many sub sandwiches did Sidney order? ** 3 less than ten meatball sub sandwiches is 10-3=<<10-3=7>>7 sub sandwiches.
How many sub sandwiches remained? ** After Mark ate 4 of Sidney's meatball sub sandwiches, 7-4=<<7-4=3>>3 remained.
How many sub sandwiches were there after Sidney ordered more? ** Finally, after Sidney ordered three more sub sandwiches, there were a total of 3+3=<<3+3=6>>6 sub sandwiches.
How many meatballs were in the sub sandwiches that remained? ** If each sub sandwich has 4 meatballs, then the remaining sub sandwiches contain a total of 6*4=<<6*4=24>>24 meatballs.
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