42+20²=442
9²+1000=1081
(700-8²)×2=1272
340+10×5²=590
(8²+20)×40=3360
(290-46)×2²=976
90²÷10+400=1210
(250+10²)-200=150
42+20²=442
9²+1000=1081
(700-8²)×2=1272
340+10×5²=590
(8²+20)×40=3360
(290-46)×2²=976
90²÷10+400=1210
(250+10²)-200=150