Thấy 28%=\(\frac{7}{25}\)33%=\(\frac{33}{100}\)17%=\(\frac{17}{100}\)

Vậy ta có phép tính \(\frac{7}{25}+\frac{11}{50}+\frac{17}{100}+\frac{33}{100}\)

Ta có: \(\left(\frac{7}{25}+\frac{11}{50}\right)+\left(\frac{17}{100}+\frac{33}{100}\right)\)

=\(\frac{6}{25}+\frac{1}{2}\)=\(\frac{37}{50}\)

28% + 11/50 + 17% + 33%

= 28/100 + 11/50 + 17/100 + 33/100

= (28/100 + 17/100 + 33/100) + 11/50

= 39/50 + 11/50

= 50/50

= 1

\(\frac{11}{50}\)= 22 %

Vậy kết quả là : 

28 % + 22 % + 17 % + 33 % = 100 % 

- 3 - 

=\(\frac{17}{25}\)

1,35326087

-2/3

0

-6/29/44

-9

nha bạn

17/25

\(\frac{17}{25}\times\frac{11}{28}+\frac{34}{50}\times\frac{17}{28}=\frac{187}{700}+\frac{289}{700}=\frac{17}{25}\)

\(\frac{17}{25}\cdot\frac{11}{28}+\frac{34}{50}\cdot\frac{17}{28}\)

\(=\frac{187}{700}+\frac{578}{1400}\)

=\(\frac{952}{1400}\)

=\(\frac{119}{175}\)

17/25*1128+34/50*17/28=187/700+289/700=17/25

=17/25*(11/28+17/28)

=17/25*1

=17/25

17/25 x 11/28 + 34/50 x 17/28 = 17/25

k mk nha mk k lai

wow! mù mắt. Ido tính toán có khác!

C2:(32+1)x32:2=528

bạn tính thử xem đúng đấy.

wowwowwow

=-3720

đồ bấm máy tính ko chấp

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31

+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+4

7+48+49+50-999-888-777-666-555-444-333-222-111= -3720

A= 16

B= 10

C= -20

D= -10

E= -2481

F= 80

áp dụng kiến thức tính nhanh ý

1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50=1275

= 1275