325x(37+45)-63x(-325)+45x(-225)
GIÚP MIK GẤP Ạ
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
325.(37+45)-63.(-325)+45.(-225)
=325.37+325.45+63.325+45.(-225)
=325.(37+63)+45.(325-225)
=325.100+45.100
=100.(325+45)
=100.370
=37000
mình chắc là nó đúng
\(325\left(37+45\right)-63\left(-325\right)+45\left(-225\right)\)
\(=325\cdot37+325\cdot45+63\cdot325-45\cdot225\)
\(=325\left(37+63\right)+45\left(325-225\right)\\ =325\cdot100+45\cdot100\\ =100\left(325+45\right)\\ =100\cdot370\\ =37000\)
b)\(\dfrac{45^2.40^2.18^2}{180^2}=\dfrac{45^2.4.10.4.10.18.18}{180^2}=\dfrac{45^2.4.4.180.180}{180^{20}}=\dfrac{45^2.16}{ }\)
a) \(\left(45x105-225\right)-\left(210+42x95\right)\)
\(=45x\left(100+5\right)-225-210+42x\left(100-5\right)\)
\(=4500+45x5-225-210+4200-42x5\)
\(=4500+4200+45x5-42x5-225-210\)
\(=8700+5x\left(45-42\right)-435\)
\(=8700+15-435=8280\)
a: =45*105-225-210-42*95
=45*(105-5)-42(95+5)
=100*3
=300
b: =47(105-5)-42(96+4)
=47*100-42*100
=5*100
=500
-5 + (-37 - 45 + 51) - (-37 + 51)
= -5 - 37 - 45 + 51 + 37 - 51
= - (5 + 45) - (37 - 37) + (51 - 51)
= - 50 - 0 + 0
= - 50
- (15 - 47 + 58) + (15 - 47 ) + 3
= - 15 + 47 - 58 + 15 - 47 + 3
= (-15 + 15) + (47 - 47) - (58 - 3)
= 0 + 0 - 55
= - 55
(53 - 45 - 49) - (53 + 45 - 49)
= 53 - 45 - 49 - 53 - 45 + 49
= (53 - 53) + (-49 + 49) - (45 + 45)
= 0 + 0 - 90
= - 90
13 - 15 + 49 - 13 + 15 - 48
= (13 - 13) + (-15 + 15) + (49 - 48)
= 0 + 0 + 1
= 1
a) = \(\left(\dfrac{2}{7}+\dfrac{4}{7}+\dfrac{1}{7}\right):\dfrac{27}{31}\)
= \(\dfrac{7}{7}\) x \(\dfrac{31}{27}\)
= 1 x \(\dfrac{31}{27}\) = \(\dfrac{31}{27}\)
b) = \(\left(\dfrac{23}{45}:\dfrac{23}{45}\right)\)x \(\dfrac{17}{51}\)
= 1 x \(\dfrac{17}{51}\)= \(\dfrac{17}{51}\)
\(37x2+325:5-172\)
\(=74+65-172\)
\(=74+26+39-100-39-33\)
\(=100-100+39-39-33\)
\(=-33\)
Ư(26)={1;2;13;26}
Ư(39)={1;3;13;39}
Ư(64)={1;2;4;8;16;32;64}
Ư(12)={1;2;3;4;12}
Ư(45)={3;5;9;15;45}
\(Ư\left(26\right)=\left\{1;-1;2;-2;13;-13;21;-26\right\}\)
\(Ư\left(39\right)=\left\{1;-1;3;-3;13;-13;39;-39\right\}\)
\(Ư\left(64\right)=\left\{1;-1;2;-2;4;-4;8;-8;16;-16;32;-32;64;-64\right\}\)
\(Ư\left(12\right)=\left\{1;-1;2;-2;3;-3;4;-4;6;-6;12;-12\right\}\)
\(Ư\left(45\right)=\left\{1;-1;3;-3;5;-5;9;-9;15;-15;45;-45\right\}\)
37000
325x(37+45)-63x(-325)+45x(-225)
=325x(82)-63x(-325)+45x(-225)
=26650-(-20475)+(-10125)
=47125+(-10125)
=37000
chúc bạn học tốt