Video Transcript
Find the result of the following
subtraction: 9,213 subtract 425.
In this question, we have to
subtract using the standard written method. We always start by subtracting in
the ones column. We’ve got three ones, and we need
to subtract five ones. But three is less than five, which
means we’re going to need to regroup. We need to take a 10 and exchange
it for 10 ones. Now we’ve got 13 ones. We can subtract five. 13 take away five leaves us with
eight ones.
Next, we need to subtract in the
tens column. There are no tens, and we need to
subtract two 10s. And since zero is less than two,
we’re going to have to regroup again. We need to take one of our hundreds
and exchange it for 10 10s. So now we have 10 10s, and we need
to take away two. And we know that 10 10s take away
two 10s leaves us with eight 10s.
In the hundreds place, we’ve got
one 100, and we need to subtract four 100s. Again, since one is less than four,
we have to regroup. We need to take 1,000 and exchange
it for 10 100s. Now we’ve got 11 100s. We can subtract four, which leaves
us with seven 100s. Finally, we can subtract the
thousands. There are eight 1,000s and nothing
to subtract, which means we’ve got eight 1,000s left. 9,213 subtract 425 equals
8,788.
