Lớp 4 - Kiểm tra tháng 11

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["5578920",{"ans1":"2135 x (30 + 4)","ans2":"2135 x 30 + 2135 x 4","ans3":"64050 + 8540","ans4":"72590"},{"list":[8892,8892],"result":97812},{"list":[23072,40376,46144],"result":5041232},{"list":[72,623,4037],"result":246144},[1,3],"100",[3],"2","42000"]