100.2=200

(100x2=200)

chúc bạn học giỏi

200

kb nhé

Ta có : 100 . 2 = 200

100+100.2

=200.2

=400

100 + 100 . 2

= 100 + 200

=  300

k mik nha

100+100*2

=100+200

=300

=15-200.200

=15-40000

=-39985

Nhớ nhé!

=15-200:200

=15-1

=14

15 - 25 . 8 . ( 100 . 2 )

= 15 - 25 . 8 . 200

= 15 - 1000 . 200

= 15 - 200000

= - 199985

=200

=200

hok tốt

100.2=200

100+100=200

100.2 = 200

100 + 100 = 200

123 + x = 456 - 200

123 + x = 256

          x = 256 - 123

          x = 133

.

123 + x = 456 - 100 . 2

123 + x = 456 - 200

123 + x = 256

          x = 256 - 123

          x = 133

123 + x = 456 - 100.2

123 + x= 456 - 200

123+x = 256

=> x= 256- 123

=> x= 133

vậy x= 133

4833/1300 nhé

mk chưa bt đung,sai nhưng cho bn đó

( 30 . 21 + 22 - 10/13 + 100 ) : ( 100 . 2 )

=  ( 630 + 22 - 10/13 + 100 ) : 200

= ( 652 - 10/13 + 100 ) : 200 

= ( 651,2307692 + 100 ) : 200

= 751,2307692 : 200

= 3,756153846

#Học tốt#

Theo đề ta có:

  100 . 2 + 100 . 3 + 100 . 4 + 100 . 5

= 100 . (2 + 3 + 4 + 5)

= 100 . 14

= 1400

100.2+100.3+100.4+100.5

=100.(2+3+4+5)

=100.14

=1400

\(2A=2.2^3+3.2^4+4.2^5+...+100.2^{101}\)

=> \(2A-A=100.2^{101}-\left(2^{100}+2^{99}+...+2^4+2^3\right)-2.2^2\)

Đặt \(B=2^3+2^4+...+2^{100}\Rightarrow2B=2^4+2^5+...+2^{101}\)

=> \(2B-B=2^{101}-2^3\Rightarrow B=2^{101}-2^3\)

=> \(2A-A=100.2^{101}-\left(2^{101}-2^3\right)-2.2^2\)

=> \(A=\left(100.2^{101}-2^{101}\right)+2^3-2^3\)=\(99.2^{101}\)

helllo

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