Express $100$100 in the expanded form using exponential notation.
Express $1000$1000 in the expanded form using exponential notation.
Write the number expressed by: $2\times10^4+2\times10^3+7\times10^2+7\times10^1+6\times1$2×104+2×103+7×102+7×101+6×1.
Note: Do not use comma separators
Write the number expressed by: $3\times10^4+2\times10^3+9\times10^1+5\times1$3×104+2×103+9×101+5×1.
Note: Do not use comma separators