Place Value Analysis: Finding Tens and Units in Number 64

To determine the number of tens and units in the number 64, follow these steps:

• The number 64 is a two-digit number.
• The digit '6' is in the tens place. This means we have $6 \times 10 = 60$, so there are 6 tens in the number.
• The digit '4' is in the units place. This simply represents 4 units.

Therefore, the number 64 has six tens and four units.

Comparing this breakdown to the provided choices:

• Choice 1: Six units and four tens - Incorrect
• Choice 2: Six tens and four units - Correct
• Choice 3: Four tens and six units - Incorrect
• Choice 4: Six tens and four tens - Incorrect

Therefore, the correct choice is: Six tens and four units.