Some of my cousins and I spent a week helping Grandma Rosie clean out her attic. We found a bunch of marbles that she had collected as a child, and she told us we could split them among all the grandkids! We counted 3672 marbles in all, so each of us got a lot of marbles. But then we remembered that the Brewers, who had five of the grandchildren, weren’t with us. That meant each of those of us present had to give up 90 marbles, so that all the grandchildren would have the same number of marbles. How many grandchildren does Grandma Rosie have?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
3. Some of my cousins and I spent a week helping Grandma Rosie clean out her attic. We found a bunch of marbles that she had collected as a child, and she told us we could split them among all the grandkids! We counted 3672 marbles in all, so each of us got a lot of marbles. But then we remembered that the Brewers, who had five of the grandchildren, weren’t with us. That meant each of those of us present had to give up 90 marbles, so that all the grandchildren would have the same number of marbles. How many grandchildren does Grandma Rosie have?
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