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 ...
__ mm ÷ 5 mm = × ___
whats $1+1$
