Mrs. Costa has 18 pencils. She gives 9 pencils to each of her children for school. How many children does mrs. Costa have?
Mrs. Costa has 2 children because she gives 9 pencils to each of her kids and 9 + 9 is 18. So to solve this, you would do 18 divided by 9 which will be 2. Hope it helps :)
Mrs. Costa should have 2 children because each one gets 9 pencils and there are 18 pencils. Therefore, I divide it and 18/2=9