=736x(18+81)

=736x99

=72864

= 736x(18+81+1)
= 736x100
= 73600

= 736 × (18 + 81)

= 736 × 99

= 72864

Tính nhanh:

 a) 2003*5+2003+2003*4

=2003x(5+1+4)

=2003x10

=20030

giúp mk câu b với !!!

a) 2003x5+2003+2003x4

= 10015+2003+8012

= 20030

b) 736x625-254/624x736+482

= 460000-11684/39+482

= 459700.4103+482

= 460182.4103

109+ ( 327 + 673 ) 

109 +    1000

         1109

109 + (327+673)=109+1000=1109

109 + ( 327 + 673 )

109 + 1000 

1109

\(128673-x=5050:5\\ 128673-x=1010\\ x=128673-1010\\ x=127663\)

128673-x=5050:5=1010

=>x=128673-1010=127663.

128 637 - x = 1010

x = 128 637 - 1010

x = 127 627

1000 - x : 52 = 673

          x :52  = 1000 -  673

          x : 52 = 327

               x  = 327 x 52

               x  = 17004.

1000 - x : 52 = 673

=> x : 52 = 1000 - 673

=> x : 52 = 327

=> x = 327 x 52

=> x = 17004

2837

356

4795

\(\text{8274-5437=}2837\)

\(\text{6815-6459=}356\)

\(\text{5468-673=}4795\)

2837

356

4795

1693 nhé bạn HT

957 + 736 = 1693

TL

=1693

nha bn

HT

655

655

cảm ơn 

452 - (-673 + 548 - 123) + (-327)

= 452 + 248 - 327

= 700 - 327

= 373

452-(-673+548-123)+(-327)

=452+673-548+123-327

=373

= 452+248-327

=    700    -327

=          373