Toán Lớp 6: 34.176-34.77+34
(143.43-99.43-43^2):43+(-1)
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Toán Lớp 6: 34.176-34.77+34
(143.43-99.43-43^2):43+(-1)
Comments ( 2 )
34.176-34.77+34
=34.176-34.77+34.1
=34.(176-77+1)
=34.100
=3400
————-
(143.43-99.43-43^{2}):43+(-1)
=(143.43-99.43-43.43):43+(-1)
=[(143-99-43).43]:43+(-1)
=(43.1):43+(-1)
=43:43+(-1)
=1+(-1)
=0
________-chúc bạn học tốt-_______
Lời giải và giải thích chi tiết:
34 . 176 – 34 . 77 + 34
= 34 . (176 – 77 + 1)
= 34 . 100
= 3400
______________________________
(143 . 43 – 99 . 43 – 43^2 ) : 43 + (-1)
=(143 . 43 – 99 . 43 – 43 . 43 ) : 43 + (-1)
= [43 .(143 – 99 – 43)] : 43 + (-1)
= ( 43.1) : 43 + (-1)
= 43 : 43 + (-1)
= 1 + (-1)
=0