Video Transcript
Use the place value counters to
solve 3,243 take away 1,232. Hint: 3,243 has been shown in the
place value table. What do you need to take away?
In this question, we have to
subtract 1,232 from 3,243, and we’ve been given a place value table to help. This shows the number 3,243. When we’re subtracting with large
numbers, like these two four-digit numbers, we need to use the standard written
method. We need to write each of the
numbers in their correct place value. We can see from the place value
table that 3,243 has three ones, and we need to subtract two because 1,232 has two
ones. The tens digit in the number 3,243
is four. So we’ve got four 10s, and we need
to subtract the three 10s in the number 1,232. There are two 100s in the number
3,243, and we need to subtract two. And 3,243 has three 1,000s, 1,232
has one, so we’re subtracting one 1,000 from our three 1,000s.
When we use the standard written
method or column subtraction, we always subtract the ones first. Let’s use our place value table and
the counters to help. We’ve got three ones, and we need
to subtract two. We know that three take away two is
one. Now we can subtract in the tens
place. We’ve got four 10s, and we need to
take away three 10s: one, two, three. We’ve got one 10 left. On to the hundreds place, we’ve got
two 100s, and we need to subtract two 100s. Here we go: one, two. We’ve got no 100s left.
Finally, we move into the thousands
place. We’ve got three 1,000s, and we need
to subtract one of them. And we know that three take away
one leaves us with two 1,000s. 3,243 subtract 1,232 equals
2,011. We used column subtraction and our
place value table and counters to help us subtract. First, we subtracted the ones, then
the tens, the hundreds, and the thousands. 3,243 take away 1,232 is 2,011.
