2 $a^{1}$ x 3 $a^{1}$
7-(41-2)
145-15*6/3+90
11+2*9-5
200 $\sqrt{\Box}$ 15
24/6-3+4*2=
372/6*9-28+70
√5÷√15
24/6+49-8*5
A manager is trying to decide whether to purchase a certain part or to have it produced internally. Internal production could use ...
