1+2+3+4+...+10=?
Bye .Mik of day
K
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1
2 tháng 11 2015
Số các số hạng là :
( 100 - 1 ) : 1 + 1 = 100 ( số )
Tổng các số cũa dãy là :
( 100 + 1 ) x 100 : 2 = 5050
Đs : 5050
5 tháng 3 2017
a)3/5:3/4=12/15=4/5
2/5:3/10=20/15=4/3
9/8:3/4= 32/24=4/3
b)1/4:1/2=2/4=1/2
1/8:1/6=6/8=3/4
1/5:1/10=10/5=2/1=2
kích cho mình nha
5 tháng 3 2017
a) 3/5:3/4=3/5x4/3=(3x4)/(5x3)=12/15=4/5
b)2/5:3/10=2/5x10/3=(2x10)/(5x3)=20/15=4/3
c)9/8:3/4=9/8x4/3=(9x4)/(8x3)=36/32=9/8
d)1/4:1/2=1/4x2=2/4=1/2
e)1/8:1/6=1/8x6=6/8=3/4
g)1/5:1/10=1/5x10=10/5=2
S
27 tháng 1
The 1st of May is the day of International Solidarity of the world's working people in the struggle for peace, democracy, and socialism. Millions of people in (1) various countries celebrate May Day by holiday demonstrations. The May Day marches (2) express solidarity with the fighting people of Africa, Asia, and Latin America, with all patriots and democrats in the world, all of those (3) who struggle for peace and (4) social progress, for (5) national independence and freedom. For the first time, in 1890, hundreds of thousands of workers in Europe and America celebrated May Day by holiday demonstrations under the (6) slogan of "workers of the world, unite!" and called (7) for an eight-hour working day. They (8) demanded the end to the terribly long hours that they had been celebrating every year (9) as an (10) international holiday of the working class.
K
29 tháng 6 2018
9 - 7 - 1 - 8 - 5 - 3 - 6 - 2 - 4 - 10
9. Hello Maria. It's Jane Lowe from Univeral Tech in Singapore.
7. Hi Jane How are you?
1. Fine thanks. I'm calling because I'll be in Paris next week and I'd like to meet you. I want to tell you about our new software.
8. Perfect. It'll be great to see you again. I have a lot to tell you.
5. Great. What day would suit you?
3. How about Wednesday?
6. Let me have a look in my diary. Yes, that's fine. Is 10 o'clock OK?
2. Fantastic. See you next week then.
4. Right. See you then. Bye.
10. Bye!
13 tháng 3 2020
IV. Give the correct form of the words in brackets
2) Recently health foods have increased in ___popularity__________ . (popular)
3) I had to check the wages in ____ addition______ to my normal work. (add)
4) They said “good-bye” to each other just because of some minor __unterstanding ____. (understand)
5) The Saigon Giai Phong is a ___ daily_________ newspaper. (day)
6) He is an _experient_____ doctor who just graduated from the medical school last year. (experience)
7) Their ___commucation ______ is always good . (communicate)
8) The __delevopment _________ of TV is always fast. (develop)
9) Huy’s brother is a (profession)____ professional______ football player.
10) Quang is not very (sport)____sporty _______. He never plays any sports
27 tháng 4 2019
1+1=2
Chúc em cx vậy nha
Hok_Tốt
#Thiên_Hy
1+2+3+....+10 = 10.(10+1):2 = 55
1+2+3+4+5+6+7+8+9+10=(10+1)+(9+2)+(8+3)+(7+4)+(5+6)
=11+11+11+11+11
=11x5
=55