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22 tháng 1 2017

1 eduro =100 eurecents , so Helga has :

5x100=500 eduro

the cost of 5 notebooks are:

80x5=400

when she buy 5 notebooks money she has is

500-400=100 eurecents

one pencil costs 30 eure so 3 pencils cost are : 30x3=90 eure

So Helge can afford to buy 3 pencils and she plainti 10 eure

Nhớ k cho mình nha minh k lại cho 

13 tháng 2 2016

Từ 10 đến 19 có 9 số ko chứa chữ số 3. 

Từ 30 đến  39 ,tất cả đều chứa chữ số 3.

Vậy số số có 2 chữ số ko chứa chữ số 3 là : 9x (9-1) =72 (số )

Vậy thôi , đáp số là 72. Ko chị giận đấy

13 tháng 2 2016

tổng của 2 chữ số không bao gồm các chữ số 3

13 tháng 3 2016

Question 8

: 50

16 tháng 3 2016

Câu 8 :

40 dollars

Câu 9 :

Mình không biết .

Câu 10 :

359 marbles

Tích nha !

16 tháng 7

?

Express seventy thousand, four hundred and nine in numerals.Answer: Question 2:Subtract 346 from 752.Answer: Question 3:Divide 2016×2016 by 2016. The quotient is Question 4:Study the pattern.88:8=11  880:8=110 8800:8= ? The missing number is Question 5:Jack, Mary and Jacob buy ice creams. Jack buys twice as many as Mary. Jacob buys three times as many as Jack. If Jacob buys 12 ice creams then Mary buys  ice creams. Question 6:A set of five different numbers has an average of 12. If the average...
Đọc tiếp

Express seventy thousand, four hundred and nine in numerals.
Answer: 

Question 2:
Subtract 346 from 752.
Answer: 

Question 3:
Divide 2016×2016 by 2016. The quotient is 

Question 4:
Study the pattern.
88:8=11  
880:8=110 
8800:8= ? 
The missing number is 

Question 5:
Jack, Mary and Jacob buy ice creams. Jack buys twice as many as Mary. Jacob buys three times as many as Jack. If Jacob buys 12 ice creams then Mary buys  ice creams.
 

Question 6:
A set of five different numbers has an average of 12. If the average of four smallest numbers is 10 then the greatest number is 

Question 7:
100 hundreds + 1000 tens =  ones

Question 8:
My giant flower doubles its size every day. On Friday, it is  times as big as its was on the preceding Sunday.
 

Question 9:
Peter and John played in fifteen rounds game. In each round, the winner scored 5 points and the loser scored 2 points. At the end of the game, John’s total score was 57 points. How many rounds did Peter win?
Answer:  rounds.

Question 10:
If we write all of the whole numbers from 10 through 99 and cross out any number in which the first or second digit is divisible by 2 (for example, 41 is crossed out as 4 is divisible by 2 and 36 is crossed out as 6 is divisible by 2), how many numbers are crossed out?
Answer:  numbers.

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28 tháng 4 2017

Trump pay 389$. Make friend with me!