The length of a piece of ribbon is 250 millimeters. Which is the equivalent length in meters? \[ \begin{array}{l}\text { A. } 25 \mathrm{~m} \\ \text { D. } 2.5 \mathrm{~m} \\ 0.25 \mathrm{~m}\end{array} .025 \mathrm{~m} \] E. 0.0025 m

What is \(\frac { 4} { 20} \) simplified?

3 A rectangular block has a volume of \( 40 \mathrm{dm}^{3} \). The base area is \( 20 \mathrm{dm}^{2} \). How tall is the rectangle?

A store sells 2.75 liters of juice in one bottle and 1.25 liters in another. How many liters of juice do you have altogether?

Calcola il valore dell'espressione. \( \left(\frac{1}{7}+\frac{2}{3}\right)-\left[\frac{1}{6}+\left(\frac{2}{3}-\frac{2}{4}\right)-\left(\frac{1}{6}+\frac{2}{4}\right)\right]+\frac{2}{7}-\frac{3}{2}+\left(\frac{1}{21}+\frac{3}{2}\right. \)

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