155641 + 285231 = 440872
148 + 254687 = 254835
1984559 - 15648 = 1968911
151484 + 25854564 = 26006048
256414 - 2548 = 253866
155641+285231=440872
148++25468=224835
1984559-15648=1968911
151484+25854564=26006408
256414-2548=253866
Chúc bn hc tốt
Tk nha
\(155641+285231=440872\)
\(148+254687=254835\)
\(1984559-15648=1968911\)
\(151484+25854564=26006048\)
\(256414-2548=253866\)
155641+285231= 440872
148++254687= 254835
1984559-15648= 1968911
151484+25854564= 26006048
256414-2548= 253866
( Trời ơi khó quá )