Lớp 9 - Kiểm tra tháng 4

[{"a":8,"b":2},[-8,56],{"a":19,"b":3,"c":-33,"rnd":0},{"ty":1,"d":16},[2,2,-1,-2],{"w":[2,9,8],"t":1},[1,1,-12],{"c":1,"d":"cm","a":9,"b":12},{"c":12.5,"a":1,"b":"viên đá","d":14.4},{"c":1,"d":"cm","a":19,"b":24}]

["","0;7","-33",["16","15"],"m\/\\ge\\frac{5}{2}","\\frac{8}{2}","3;-4",{"ans":"378"},"18",{"ans":"456"}]