Do the calculation IN YOUR HEAD do not use paper, pen, calculator and BE QUICK !
There are 1000 apples in the room.
You add 40 apples more. Then add another 1000 to it.
Then add 30 more, and then add another 1000.
Add another 20, and then add another 1000. Finally add another 10.
How many apples in the room ?
An apple tree has apples on it. A storm comes through and there is no longer apples on the tree. But there isn’t apples on the ground either.
How is it possible ?