Video Transcript
Find the result of the following:
374 plus 217 plus 68 plus 45.
In this question, we need to add
together four different numbers: 374, 217, 68 plus 45. And we can see by the way the
question has been set out that we need to use the written method. It doesn’t matter how many numbers
we’re adding. We always start by adding in the
ones column. So, we need to start by adding
four, seven, eight, and five. It doesn’t matter which order we
add the digits in the ones column. The result will be the same.
We could start by adding seven and
eight, which gives us 15. Then, we can add five more, which
gives us 20, plus four gives us a total of 24 ones. We can write the four ones in the
ones column and the two 10s in the tens column, because 24 has two 10s and four
ones. Now, we can add the tens
column. Again, it doesn’t matter which
order we add these numbers; the result will be the same. We know that six and four makes 10
and seven and one makes eight. 10 plus eight is 18, plus the two
we exchanged gives us a total of 20. And finally, we can add in the
hundreds column. Three 100s and two 100s gives us a
total of five 100s, plus the two we exchanged is seven. The result of 374 plus 217 plus 68
plus 45 is 704.
We used the standard written method
to add together our four numbers. We added the ones, then the tens,
then the hundreds to give us our result of 704.
