# Rolls

Mom bought 13 rolls. Dad ate 3.5 rolls. How many rolls left when Peter yet put two at dinner?

Result

r =  7.5

#### Solution:

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

#### To solve this example are needed these knowledge from mathematics:

Need help calculate sum, simplify or multiply fractions? Try our fraction calculator.

## Next similar examples:

1. Icecreams
Karthik bought 30 icecreams for his birthday .2/5 of them are chocolate icecreams. Find the number of chocolate icecreams he bought?
2. Cakes
On the bowl were a few cakes. Jane ate one-third of them, Dana ate a quarter of those cakes that remained. a) What part (of the original number of cakes) Dana ate? b) At least how many cakes could be (initially) on thebowl?
3. Package
The package was 23 meters of textile. The first day sold 12.3 meters. How many meters of textile remained in the package?
5. Roses and tulips
At the florist are 50 tulips and 5 times less roses. How many flowers are in flower shop?
6. President
President of Slovakia earns a monthly € 7844 per month. How many times earn than Jimmy's monther salary € 612? 15.3.2014 the presidential election, which decides who will almost effortlessly 5 years to receive such space salary for nothing;)
7. Reduce to lowest terms
Reduce to lowest terms : 32/124
8. Paper collecting
At the paper collecting contest gathered Franta 2/9 ton, Karel 1/4 ton and Patrick 19/36 tons of paper. Who have gathered the most and the least (x, y - write down the weights in tonnes).
9. Denominator
Calculate the missing denominator x: ?
10. Mixed2improper
Write the mixed number as an improper fraction. 166 2/3
11. 3 children
3 children had to divide 4 pounds is candy. How much candy did each child get?
12. Mixed numbers
Rewrite mixed numbers so the fractions have the same denominator: 5 1/5 - 2 2/3
13. In fractions
An ant climbs 2/5 of the pole on the first hour and climbs 1/4 of the pole on the next hour. What part of the pole does the ant climb in two hours?
14. What is one third
What is 1/3 as a decimal? Give your answer rounded to 2 decimal places.
15. Triangle
Prove whether you can construct a triangle ABC, if a=9 cm, b=10 cm, c=4 cm.
16. Roman numerals +
Add up the number writtens in Roman numerals. Write the results as a decimal number.
17. Roman numerals 2+
Add up the number writtens in Roman numerals. Write the results as a roman numbers.