The decimal equivalent of '320' in base 5 is calculated as (3 * 5^2) + (2 * 5^1) + (0 * 5^0) = 75 + 10 + 0 = 80.

The decimal equivalent of the base 5 number 243 is calculated as 2*5^2 + 4*5^1 + 3*5^0 = 50 + 20 + 3 = 60.

To convert from base-6 to decimal, calculate 4*6^2 + 0*6^1 + 5*6^0 = 4*36 + 0 + 5 = 144 + 5 = 149.

To convert from base-2 to decimal, calculate 1*2^3 + 1*2^2 + 0*2^1 + 1*2^0 = 8 + 4 + 0 + 1 = 13.

The decimal number 10 is represented as 1010 in binary.

The decimal number 15 is represented as 1111 in binary.

The decimal number 255 converts to binary as 11111111.

A3 in hexadecimal is calculated as 10*16^1 + 3*16^0 = 160 + 3 = 163.

The binary number 1011 converts to decimal as follows: 1*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 8 + 0 + 2 + 1 = 11.

The decimal number 5 is represented as 12 in base 3 (1*3^1 + 2*3^0 = 3 + 2 = 5).

In base 3, the decimal number 5 is represented as '12' (1*3^1 + 2*3^0 = 3 + 2 = 5).

The decimal number 5 is represented as 21 in base-3 (2*3^1 + 1*3^0 = 5).

To add in base-3, convert to decimal: 12 (base-3) = 3 + 2 = 5 (decimal) and 21 (base-3) = 2 + 0 = 2 (decimal). The sum is 5 + 2 = 7 (decimal), which is 21 in base-3.

The sum of '12' and '21' in base-4 is '30' in base-4.

In base-4, the sum of 3 and 2 is 11 (3 + 2 = 5 in decimal, which is 11 in base-4).

To convert from base-5 to decimal, multiply each digit by 5 raised to the power of its position (from right to left, starting at 0). Thus, 2*5^2 + 4*5^1 + 3*5^0 = 2*25 + 4*5 + 3*1 = 50 + 20 + 3 = 73.

The base-5 number 243 is calculated as 2*5^2 + 4*5^1 + 3*5^0 = 50 + 20 + 3 = 60 in decimal.

The base-5 number 243 converts to decimal as 2*5^2 + 4*5^1 + 3*5^0 = 50 + 20 + 3 = 73.

In base-5, the decimal number 10 is represented as 20.

In base-5, the decimal number 12 is represented as 22 (2*5^1 + 2*5^0 = 12).

In base-5, the decimal number 7 is represented as 12, since 1*5^1 + 2*5^0 = 5 + 2 = 7.

In a base-5 numeral system, valid digits are 0, 1, 2, 3, and 4; thus, 5 is not valid.

To convert from base-7 to decimal, calculate 3*7^2 + 4*7^1 + 5*7^0 = 3*49 + 4*7 + 5 = 147 + 28 + 5 = 180.

In hexadecimal, 'A' represents 10 and '3' represents 3. Therefore, A3 = (10 * 16^1) + (3 * 16^0) = 160 + 3 = 163.

The term 'base' refers to the number of unique digits used in a numeral system.

Place value refers to the value of a digit based on its position in a numeral.

The decimal number 255 is represented as FF in hexadecimal.

The hexadecimal number 'A3' converts to decimal as follows: A (10)*16^1 + 3*16^0 = 160 + 3 = 163.

The hexadecimal number 1A converts to decimal as 1*16^1 + 10*16^0 = 26.

The term 'base' refers to the number of unique digits used in a numeral system.