25x187+187x73+817x1+817x1

 = 187x(25+73+1+1)

= 187x100

=18700

25 × 187 + 187 × 73 + 817 + 817 

= 25 × 187 + 187 × 73 +187+187+1260

= 187 x ( 25+73+1+1) + 1260

= 187 x 100 + 1260

= 18700 + 1260

= 19960

chúc bn học tốt 

Sủa lại đề nhé

\(25\cdot187+187\cdot73+187+187\)

\(=187\cdot\left(25+73\right)+187+187\)

\(=187\cdot98+187+187\)

\(=187\cdot\left(98+1+1\right)\)

\(=187\cdot100\)

\(=18700\)

=146+287+158+187+158+546

=692+474+316

=1482

= 146 + 287 + 158 + 187 + 158 + 546
= 100 + 46 + 200 + 87 + 100 + 58 + 100 +87 +100 +58 +500 + 46
=(100+200+100+100+100+500) + (46+46+87+87+ 58+58)
=1100 + 2 x (46 + 87 + 58)
=1100 + 2 x (190 +1)
=1100 + 2 x 190 + 2
=1100 + 380 + 2
=1482

Trả lời

25.(187+1400)

=25.87+25.1400

=2175+35000

=37175.

25.(187+18+1382)

=25.(187+1400)

=25.187+1400

=25.1400+187

=35000+187

=35187

1/3 x 46 +2/3x37                   3,2x (95x10) +(8x4)x 187 -(32x 10) x 8,2

=(1/3+2/3) x (46+37)              32x95+32x 187- 32x 82

= 1x 100                                  32x( 95+187-82)

= 100                                     = 32 x200

                                             = 6400

thank bạn nha

\(\frac{400}{101}\)

\(A=\frac{113+892+187+808}{742-23+158-372}\)

\(A=\frac{\left(113+187\right)+\left(892+808\right)}{\left(742-372\right)+\left(158-23\right)}\)

\(A=\frac{300+1700}{370+135}\)

\(A=\frac{2000}{505}=\frac{400}{101}\)

1/ M= [119+(-118)] + [(-213)+212)] + 2009

M= 1                 +        -1         + 2009

M= 2009

2/ N = (223- 23) + (132 - 32) + (187-27)

   N= 200 + 100 + 160 

   N= 300 + 160

   N= 460

OLM duyệt đi

25.(187+18+1382)

= 25.(187+1400)

=25.1400+187

=3500 +187

= 35187

1.M=199+(-213)+212+(-118)+2009

M=(199+2009-118)+(212-213)

M=(2208-118)-1

M=2090-1=2089

2. N=223+132+187-23-32-87

N=(223-23)+(132-32)+(187-87)

N=200+100+100=400

a, A= x + (-37) - 235 = (-11) + (-37) - 235 = -48 - 235 = -283

b, A = x + (-37) - 235 = 187 - 37 - 235 = 150 - 235 = -85