Write the value (in decimal fraction) and the place value of each of the underlined digits.

1. Write the value (in decimal fraction) and the place value of each of the underlined digits.

*a) Number: $2,\underline{3}45$
Place value: Hundreds
Number value: 300

*b) Number: $4,67\underline{8}$
Place value: Units
Number value: 8

*c) Number: $1,\underline{9}53$
Place value: Hundreds
Number value: 900

*d) Number: $564,\underline{3}4$
Place value: Tenths
Number value: 0.3 or $\frac{3}{10}$

2. Write down the values of the points marked A to D using decimal fractions.

The number line is divided into tenths between 6.4 and 6.5. Each small mark represents 0.01.

• A: $6.4 + 3 \times 0.01 = 6.4 + 0.03 = \boxed{6.43}$
• B: $6.4 + 7 \times 0.01 = 6.4 + 0.07 = \boxed{6.47}$
• C: This point is explicitly marked as $\boxed{6.5}$
• D: $6.5 + 5 \times 0.01 = 6.5 + 0.05 = \boxed{6.55}$