Toán Lớp 6: 17.5+7.17-16.12
2015+[38-(7-1)^2]-2017^0
giải hộ mik với help
Leave a reply
Register Now
Login
Lost Password
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Toán Lớp 6: 17.5+7.17-16.12
2015+[38-(7-1)^2]-2017^0
giải hộ mik với help
Comments ( 2 )
17.5+7.17-16.12
= 17.(5+7)-16.12
= 17.12 -16.12
= (17-16).12
= 1 .12
= 12
2015+[38-(7-1)²]-2017^0
= 2015+[38- 6²]- 1
= 2015+[38- 36]- 1
= 2015+ 2 -1
= 2017 -1
= 2016
Giải đáp:
@ 17 . 5 + 7 . 17 – 16 . 12
= 17 . ( 5 + 7)- 16 . 12
= 17. 12 – 16 . 12
= 12 . ( 17 – 16) = 12 . 1 = 12
@ 2015 + [38 – (7-1)^2] -2017^0
= 2015 + (38 – 6^2) – 1
= 2015 + 38 – 36 -1
= 2015 + 2 – 1
= 2016