Addition and Subtraction of Double Digit Numbers with Carrying
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What's easy, simple, and comfortable? Adding and subtracting double digit numbers. What's not-so-easy, the opposite of simple, and definitely not comfortable? Fitting 18 clowns into a car. Luckily you'll only have to learn that second part if you enroll in clown school.
|Basic Operations||Addition and Subtraction|
since it's exactly the number of seats in his car.
Unfortunately, he didn't take into account his friend's... friends.
Gonzo has a pet chicken he takes wherever he goes.
Ditso has an invisible dog that can't stand to be left alone.
And Arlequino can't travel without his monkey sidekick.
Klyde had better make room for all these animals.
How many seats does Klyde's car need in all?
Klyde needs seats for 18 friends, plus 3 pets.
What's 18 plus 3?
When we line up our numbers, the problem looks like this.
18 has an "8" in the ones place,
so we add 8 plus 3 to get the final number in the ones place.
8 plus 3 is 11, but that's too many digits for the ones place.
That's easy to take care of.
Leave the number in the ones place, and
carry the number in the tens place into the tens place column.
Then add all the numbers in the tens place.
Looks like Klyde needs 21 seats in his car.
So he has to make his vehicle a little bigger.
Maybe it would have been easier to institute a "no pets" policy...