1)
What are the connotations of "ve'Sochen Leveinim Titeinu"?
1.
Rashi, Targum onkelos and Targum Yonasan: It means ?the total number of bricks?.
2.
Oznayim la'Torah: It implies both the quantity of bricks, as well as the quality - that they should not produce bricks containing any less straw than before.