\(=24\cdot16+16\cdot114-76\cdot8\)
\(=16\left(24+114\right)-76\cdot8\)
\(=16\cdot138-76\cdot8=1600\)
\(=24\cdot16+16\cdot114-76\cdot8\)
\(=16\left(24+114\right)-76\cdot8\)
\(=16\cdot138-76\cdot8=1600\)
1) (5¹⁹⁸⁶-5¹⁹⁸⁵) : 5¹⁹⁸⁵
2) (7⁸⁴⁶+7⁸⁴⁷) : 7⁸⁴⁶
3) (9²⁰¹⁸-3⁴⁰³⁶) : 6²⁰⁰⁶
4) (7⁸⁰.8⁷⁰-56⁷⁰) : 56⁷⁰
5) 4⁴⁰¹⁶:(4⁴⁰¹⁷-4⁴⁰¹⁶)
6) (12²⁰⁶.2²⁰⁷-24²⁰⁶) :24²⁰⁶
7) (5²-24)⁸⁹⁴⁶+4³⁰:2⁶⁰
8) (37.8¹⁰⁰⁷-7.2³⁰²¹) :8¹⁰⁰⁷
-Mình cần gấp ạ
Chứng minh rằng :42/20. 24 +42/24 .28 +...+ 42/76. 80 < 1
[24+5^2*4–(32–64:2^3)]:(7+24*8)^2
Tìm x
(2x+4).8-40=24
(2x+42)-8=64:2
(3x+2).4-20=24
(2x+3)2-8=50;2
Tính hợp lí:
a) 125. ( -24 ) + 24 . 225
b) 24. ( -125 ) - 125. ( -36 )
c) 512. ( 2- 128 ) - 128. ( -512 )
d) ( -8 ). 25 .( -2 ). 4 .( -5 ). 125
Tính nhanh :
a, 24 . 64 + 36 . 24 - 100 . 24
b, 5 . 4² - 16 : 2²
Tích (-3)2.(-4) bằng:
(A) -36
(B) 36
(C) -24
(D) 24
Cho A = 4+4^2+4^3+...+4^23+4^24
cho mình hỏi bài này:
Tính nhanh
176+483+24+117
239+518+761+482
32+33+34+...+78+79+80
5 . 125 . 2 . 4
25 . 50 . 4 . 20
17 .32+43 . 17+17 , 25
24 . 19+29 . 24+18 . 24+24 . 33+24