Lớp 9 - Kiểm tra tháng 4

[{"a":11,"b":7},[-8,40],{"a":15,"b":2,"c":49,"rnd":2},{"ty":5,"n1":200,"n2":40,"m":240},[-3,1,4,-3],{"w":[-3,5,5],"t":2},[-1,-2,15],{"c":1,"d":"cm","a":12,"b":15},{"c":12,"a":2,"b":"hòn bi sắt","d":10.8},{"c":0,"d":"dm","a":21,"b":27}]

[{"ans1":"18","ans2":"77"},"5;0","49",["120"],"m\/\\ge\\frac{35}{48}","\\frac{55}{9}","3;-5",{"ans":"648"},"12,96",{"ans":"567"}]