# Examples for 4th grade

#### Number of problems found: 158

- The bookkeeper

The bookkeeper bought 45 copies of fairy tale books for CZK 120 and 65 copies of the encyclopedia for CZK 325. then he sold it in his shop like this: fairy tales for 135 CZK and encyclopedias for 360 CZK. What was the purchase price of the books? And the - Prescription

Jannin knows that Mr. Robinson needs 14 tablets for a week's supply of an anti-inflammatory drug Mr. Robinson is going to vacation and needs a four week supply. How many tablets does Johnny need to fill his prescription? - Butterflies and bees

There were 35 flowers in the garden. The butterflies were on 17 flowers. There were butterflies and bees on 8 flowers. Can you find out on how many flowers were only bees? Note. there was a maximum of one butterfly and a maximum of one bee on each flower. - Loaded train

The whole loaded train weighs 360 tons. It has twenty wagons, each carrying 12 tons of grain. What is the weight of the locomotive? - Chess competition

4 chess players took part in the competition. How many tournaments have taken place if every chess player has fought everyone once? - In the bowl

There are 12 pears in the bowl. Erik ate a third. How many pears remained in the bowl? - Ten pupils

10 pupils came to the art group. 8 pupils painted with watercolors and 9 pupils painted with ink, each pupil painted with ink or watercolors. How many pupils painted water and ink at the same time? - Football field

The soccer field may have a width of 45 meters. This is 45 meters less than the length of the course. What can be the length of the football field? - The machine

The machine works 7 hours a day and produces 1 part in 5 minutes. How many parts will it produce in 1 hour? How many parts will it produce in 1 day? - Small painters

There are ten pupils in the painting group. Eight pupils paint with watercolors and nine pupils with tempera colors. How many pupils paint both water and tempera colors when each pupil paints? - Eggs

3400 eggs sliced hens for February and March. We have to calculate how many hens can make 3400 eggs when one hen give 2 eggs a day for 59 days. - Spending money

Boris spent 324 €. Robo spent 130 € more. How much did they spend together? - Pupils

There are 27 pupils in the classroom. They can swim 21 and ski nine pupils. Neither swim nor ski three pupils. How many pupils can swim and ski? - A koala

A koala lives to be 14 years old in the wild. How much longer will a 2 year old koala probably live? - Calculate

Calculate the square area if its perimeter is 14dm. - Fishing boat

The fishing boat caught 14 fish in one day. How many fish will catch 4 fishing boats in 8 days? - Pimps

There were 24 pimps in the plate. Maros ate 12, his little sister four times less. How many pimps remained in the plate? - Photo frame

A square shape photo with a side length of 20 cm is framed by a 4 cm wide bar. Find the external frame size of this photo (the frame is from all sides) - Adding shapes

5 triangles + 1 square = how many sides in all - Baking

There are 28 bunches, and son ate 1/2, dad ate four bunches. How many of them remain on the baking dishes?

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