# Problems for 5th grade (the fifth graders)

- Addition of mixed numerals

Add two mixed fractions: 2 4/6 + 1 3/6 - Adding mixed numbers

Add this two mixed numbers: 1 5/6 + 2 2/11= - Workers

Three factory operators produced 480 units in 50 minutes. How many hours worked? I'm trying to prove or disapprove the idea that the company tell me that it's 2.5 hours. So what is right? Thank you, Petra - The average

The average of one set of 4 numbers is 35. The average of another set of number is 20. The average of the numbers in the two sets is 30. How many numbers are there in the other set? - Discount sale

After the discount, the computer costs 9600, - CZK. How much did it cost when the price was reduced: a) by half b) by a third c) by one fifth and then by 160 CZK - Brick

One brick is 6 kg and half a brick heavy. What is the weight of one brick? - Chocolate

Randy bought 6 same chocolates for 6 Eur. How many euros will he pay for 25 chocolates? - Three cats

If three cats eat three mice in three minutes, after which time 140 cats eat 140 mice? - Divisibility

Is the number 761082 exactly divisible by 9? (the result is the integer and/or remainder is zero) - Cyclist

A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours? - Monkey

Monkey fell in 38 m deep well. Every day her scramble 3 meters, at night dropped back by 2 m. On that day it gets hangover from the well? - Medicament

Same type of medicament produces a number of manufacturers in a variety of packages with different content of active substance. Pack 1: includes 60 pills of 600 mg of active substance per pack cost 9 Eur. Pack 2: includes 150 pills of 500 mg of active sub - Chickens

2 chickens give 2 eggs in 2 days. How many eggs can give 8 chickens for 8 days? - Homeless Dezider

Homeless Dežko has 9 coins in jacket: Calculate the value of its assets and calculate how many bottles of wine for 0.55 EUR can he buy. - Tereza

The cube has area of base 225 mm^{2}. Calculate the edge length, volume and area of its surface. - Textbooks

After check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn? - Subtraction

How many times you can subtract the number 4 from the number 50? - School trip

School trip cost 90 Eur for one class (20 students). How much would cost a trip for two classes? (both classes together have 40 students) - Youth track

Youth track from Hronská Dúbrava to Banská Štiavnica which announced cancellation attracted considerable media attention and public opposition, has cost 6.3 euro per capita and revenue 13 cents per capita. Calculate size of subsidies to trip group of 28. - It is rectangular?

Size of two of the angles in a triangle are: α=110°, β=40°. Is it a right triangle?

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