Video Transcript
Complete the missing data in
the following table.
In this question, we’re shown a
table. And we’re told that some of the
information is missing. This is a multiplication
table. We have to multiply the numbers
on the top row by 10 and write the answer in the bottom row. Seven multiplied by 10 is
70. We have to find eight times
10. And the row that comes after
eight times 10 is nine times 10, which is 90.
We could use these
multiplication facts to help us find the missing number. In other words, we could use
the fact that seven times 10 is 70 to help us find eight times 10. We could also use the fact that
nine times 10 is 90 to help us find eight times 10. If we add 10 to 70, we’ll have
eight 10s instead of seven. And we know that 70 plus 10 is
80. 90 take away 10 is also 80. Nine 10s are 90, so eight 10s
are one less 10 than 90. 90 take away 10 is 80.
The missing number in the table
is 80. We found the answer using the
facts we were already given. Eight times 10 equals 80.
