Please solve and explain part a

[tex]2 \times {10}^{0} \\ = 2 \times 1 \\ = 2[/tex]
You should circle 2 in the units place.
Hope it helps.
Do comment if you have any query.
Answer:
222.222
Step-by-step explanation:
[tex] \\ \tt2 \times {10}^{0} [/tex]
[tex] \\ \tt = 2 \times 1[/tex]
[tex] \\ \tt = 2[/tex]