Since, Travis writes [tex]9 \times 8 = 72[/tex].
Yes, he is correct.
We will use two strategies to check Travis work.
First strategy:
We will divide '72' by '9'.
Since, [tex]72 \div 9 = 8[/tex]
So, the expression which Travis wrote as [tex]72 = 9 \times 8[/tex] is correct.
Second strategy:
We will add '9' eight times.
[tex]9+9+9+9+9+9+9+9 = 72[/tex]
Therefore, [tex]9 \times 8 = 72[/tex]
So, the expression [tex]72= 9 \times 8[/tex] is correct.
