Asking for a Specific Quantity

You need a precise amount of something and communicate the quantity you want.

You
Buenos días. ¿Me da una docena de huevos, por favor?
BWEH-nohs DEE-ahs. meh dah OO-nah doh-SEH-nah deh WEH-bohs, pohr fah-BOHR?
Good morning. Can you give me a dozen eggs, please?
¿Me da...? is a polite and common way to ask for something at a market. It literally means 'Can you give me...?'
Seller
Sí, aquí tiene. ¿Algo más?
SEE, ah-KEE TYEH-neh. AHL-goh MAHS?
Yes, here you go. Anything else?
You
Sí, dame tres aguacates y un cuarto de kilo de tomates.
SEE, DAH-meh trehs ah-gwah-KAH-tehs ee oon KWAHR-toh deh KEE-loh deh toh-MAH-tehs.
Yes, give me three avocados and a quarter kilo of tomatoes.
Markets in Latin America use the metric system. Un cuarto de kilo (250 grams) is a handy amount for small purchases.
Seller
Muy bien. Son cuarenta y cinco pesos en total.
mwee BYEHN. sohn kwah-REHN-tah ee SEEN-koh PEH-sohs ehn toh-TAHL.
Very well. That's forty-five pesos total.