\(( − 93 ) − 10 + 25 \)
\(=\)\(\left(-103\right)+25\)
\(= -78\)
(−93)−10+25(−93)−10+25
==(−103)+25(−103)+25
=−78
(−93)−10+25(−93)−10+25=(−103)+25(−103)+25
=−78
\(( − 93 ) − 10 + 25 \)
\(=\)\(\left(-103\right)+25\)
\(= -78\)
(−93)−10+25(−93)−10+25
==(−103)+25(−103)+25
=−78
(−93)−10+25(−93)−10+25=(−103)+25(−103)+25
=−78
125 . 93 - 125 . 46 - 25 . 25
bài 1:
a) 10\17+5\-13-11\25+7\17-8\13
b) 0,3-93\7-70%0-4\7
c)1\8+1\24+1\48+...+1\2400
d) 3\41-12\17+33\49
-----------------------------
12\41-48\17+132\49
( 23 . 94 + 93 . 45 ) : ( 93 . 10 - 92 )
Tính hợp lý nhất có thể nhé
tính
3-5+13-15+23-25+....=93-95+103
Tính:
A=3-5+13-15+23-25+....+93-95+103
Tính hợp lí
3-5+13-15+23-25+....+93-95+103
Tìm x biết
a. 189-2.(93-x) =25
b. 35:x
2 . 53 . 27 + 6 . 9 . 87 - 3 . 18 . 40 = ???
12 . 25 + 29 . 25 + 59 . 25 = ???
43 . 37 + 93 . 43 + 57 . 61 + 69 . 57 = ???
12 . 53 + 53 . 172 - 53 = ???
35 . 54 + 35 . 58 + 65 . 75 + 65 . 45 = ???
39 . 8 + 70 . 3 + 31 . 8 = ???
Tính nhanh
A= 4 x 2 x 25 x 5 x 175
B=42-104:(50 x 273-50 x 73)
C=3 x 53 x 6+2 x 9 x 87-18 x 40)
D=99 - 97 + 95 - 93 + 91-...+ 7 - 5 + 3 - 1