Toán Lớp 6: 2 mũ 2.85+15.2 mũ 2 -2022 mũ 0 50+[65-(9- mũ 2) (39-19):(-2)+(34-22).5 123.456+456.321-256.444

Question

Toán Lớp 6:  2 mũ 2.85+15.2 mũ 2 -2022 mũ 0 50+[65-(9- mũ 2) (39-19):(-2)+(34-22).5 123.456+456.321-256.444

maianh67 · Answer

@  ????????????????????????✨     a) 2^2.85+15.2^2-2022^0     =4.85+15.4-1     =340+60-1     =400-1     =399     b) C&acirc;u n&agrave;y bạn cho (9- mũ 2) m&igrave;n khum hỉu n&ecirc;n m&igrave;n bỏ dấu - đy nh&eacute; OnO     50+[65-(9^2)]     =50+[65-81]     =50+(-16)     =34     c) (39-19):(-2)+(34-22).5     =20:(-2)+12.5     =(-10)+60     =50     d) 123.456+456.321-256.444     =456.(123+321)-256.444     =456.444-256.444     =444.(456-256)     =444.200     =88800

thaolanphuobg · Answer

2^2. 85+15.2^2-2022^0   =4.(85+15)-1   =4.100-1   =400-1   =399   50+[65-(9^2)]   =50+[65-81]   =50+(-16)   =34   (39-19):(-2)+(34-22).5   =20:(-2)+12.5   =(-10)+60   =50   123.456+456.321-256.444   =456.(123+321)-256.444   =456.444-256.444   =444.(456-256)   =444.200   =88800   @Ki ng