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bị sao d

0

10

nha bn k mk nha bn

thanks nhju

\(99+1-100=0\)

\(66+44-100=10\)

k mk mk k lại nhé

10 x 45 - 25 x 10

= 10 x ( 45 - 25 )

= 10 x 20

= 200

100 x 2 + 100 x 3 

= 100 x ( 2 + 3 )

= 100 x 5

= 500

10 x 45 - 25 x 10 

= 10 x [45 - 25]

= 10 x 20

= 200

100 x 2  + 100 x 3

= 100 x [2 + 3]

= 100 x 5

= 500

=[1+2+4+...+98+100]-[3+5+...+99]

sau đó thì tính từng phần rồi cộng ra kq

 A = 1+2+2²+2³+...........+2¹⁰⁰

=>2A = 2+2²+2³+2⁴+..............+2¹⁰¹

=> 2A - A = 2¹⁰¹-1

=> A = 2¹⁰¹ - 1

A=1+2+2^2+2^3+...+2^100

=>2A-A=(2+2^2+2^3+2^4+...+2^101)-(1+2+2^2+2^3+...+2^100)

=>2A-A=2^101-1

hay A=2^101-1

3 phút nha :>

1 phút

thứ tự từ bé đến lớn là : 1/3 ; 2/3 ; 6/5

1 , 2 , 3, 5 , 6 .

=(1+100)*100/2

=5100

Tổng của 1 + 2 + 3 + 4 + ..... + 97 + 98 + 99 + 100 là"

       ( 1  + 100 ) x100 : 2 = 5100

1)mot nam khong tam

2)sau sau ban ban mot nam khong tam

3)ba ret khong ba

4)sau mot nam khong tam

5)sau sau ban ban lam

1) Một năm không tắm.

2) Xấu xấu bẩn bẩn ba năm không tắm.

10.000.000 Đơn vị

Gọi số tự nhiên có 5 chữ số là \(\overline{abcde}\). Theo đề bài, khi viết thêm số 100 vào bên trái số đó ta được số \(\overline{100abcde}\)

Khi đó số tự nhiên ban đầu sẽ tăng lên:

\(\overline{100abcde}-\overline{abcde}=10000000\) (đơn vị)

Đáp số: 10000000 đơn vị