435 x 25 + 76 x 435 - 435

= 435 x 25 + 76 x 435 - 435 x 1

= 435 x ( 25 + 76 - 1 )

= 435 x 100 

= 43500

ai k mk mk k lai

435x25+76x435-435

=(25+76)x435-435

=101x435-435
=43935-435

=43500

= 435 x 25 + 76 x 435 - 435 x 1

= 435 x (25 + 76 - 1)

= 435 x 100

= 43 500

\(\dfrac{435\cdot234-89}{233\cdot435+346}=1\)

a) \(\text{2459 - (400 + 459)}\)

\(\text{= 2459 - 859}\)

\(\text{= 1600}\)

b) \(435\times25+76\times435-435\)

\(=435\times\left(25+76-1\right)\)

\(=435\times100\)

\(=43500\)

c) \(35\times49+51\times36\)

\(=35\times49+51\times\left(35+1\right)\)

\(=35\times49+51\times35+51\)

\(=35\times\left(49+51\right)+51\)

\(=35\times100+51\)

\(=3500+51\)

\(=3551\)

a) 2459 - (400 + 459)

= 2459 - 400 - 459

= (2459 - 459) - 400

= 2400 - 400

= 2000

b) 435 x 25 + 76 x 435 - 435

= 435 x (25 + 76 - 1)

= 435 x 100

= 43500

c) 35 x 49 + 51 x 36

= 1715 + 1836

= 3551

a:1600

b:53500

c:1802

\(\frac{328}{435}\cdot\frac{468}{432}\cdot\frac{435}{164}\cdot\frac{432}{984}\cdot\frac{164}{468}\) 

\(=\frac{328}{984}\) 

\(=\frac{1}{3}\)

12333dfffddđ

a: \(\left[\left(-59\right)+71\right]-\left[\left(-83\right)-\left(-95\right)\right]\)

\(=\left[71-59\right]-\left[-83+95\right]\)
=12-12

=0

b: \(\left(435-167-89\right)-\left(435-89\right)\)

\(=435-167-89-435+89\)

\(=\left(435-435\right)+\left(89-89\right)-167\)

=0+0-167

=-167

c: \(\left(-624\right)-\left[\left(376+245\right)-45\right]\)

\(=\left(-624\right)-\left[376+245-45\right]\)

\(=\left(-624\right)-376-200\)

=-1000-200

=-1200

\(\frac{1}{3}\)

giải đầy đủ bạn ơi

1.

a) = 354

b) = -54

c) = -167

2.

A= -37

a.

1+2+3+............+x=435

x=435-(1+2+3+........)

mk chỉ bk đến đó thui

a) 2459 - ( 400 + 459 )

= ( 2459 - 459 ) - 400

= 2000 - 400

= 1600

b) 435 x 25 + 75 x 435

= 435 x ( 75 + 25 )

= 435 x 100

= 43 500

c) 35 x 49 + 51 x 35

= 35 x ( 49 + 51 )

= 35 x 100

= 3500

z mak p k bít uk

wá dễ

a) =1600

b) =43 500

c) =3500