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Proeflessen Overzicht

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Proefles Rekenen, Breuken Optellen - Toets


Onderwerp: percentages en breuken

Beantwoord de onderstaande vragen door op een antwoord te klikken of het antwoord in te typen.


Vraag 1: Van een som geld krijgt A 25%, B 1/4 en C de rest, te weten: 100 EURO.

Hoe groot is de som geld?

Hoeveel krijgt A?

Hoeveel krijgt B?

Vraag 2: Van een som geld geeft iemand eerst 15% uit, daarna 10%. Hij houdt nog 750 EURO over.

Hoeveel had hij eerst?

Vraag 3: In de rivier staat een paal. 1/4 zit in de grond, 3/8 zit onder water en de rest steekt uit boven water

Hoelang is de paal als het deel dat boven water uitsteekt 3 meter lang is?

Vraag 4: Een kapitaal staat uit tegen 4% rente per jaar. Na 1 jaar is verhouding Kapitaal : Rente gelijk aan:

A. 1 ; 4
B. 4 : 1
C. 25 : 4
D. 104 : 4

Vraag 5: Kapitaal - Een ouder heeft 7000 EURO op de bank staan. Na een jaar is dat bedrag door rente gegroeid naar 7350 EURO zonder bij te storten.

Hoeveel procent rente krijgt de ouder per jaar?

Vraag 6: Mengsom - Een handelaar heeft 100 kg pinda van 7 EURO per kg, 150 kg van 6 EURO per kg en 50 kg van 8 EURO per kg.

Als hij de pinda's mengt, wat moet dan 1 kg pinda kosten?

Vraag 7: Eenheden Omrekenen

5,3 km is hoeveel meter (m)?

8.97 dm is hoeveel meter (m)?

2344 m is hoeveel kilometer (km)?

Vraag 8: Reken de breuksommen uit in breuken

5/2 x 2/5 =

2/4 x 1/3 =

9 x 5/2 =

4 : 3/4 =



Vraag 9: Reken de sommen uit

8,52 + 2,60 =

4,13 + 0,20 =

12,2 + 3,33 =

Vraag 10: Het gemiddelde - 3 klasgenootjes gaan appels plukken. De 1e plukt 10, de 2e plukt 25 en de 3e plukt 4 appels.

Als ze evenveel mee naar huis willen nemen, hoeveel krijgt een ieder dan?

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Primary School Wisdoms

These are the fundamental life lessons and pieces of advice that often get instilled in us during those formative years. They might seem simple, but they lay the groundwork for how we navigate the world.

Here are 7 key wisdoms often learned (or at least introduced) in primary school:

1 - Honesty is the best policy. his instills the value of truthfulness and integrity. It teaches that while being honest might be difficult sometimes, it builds trust in the long run.

2 - Listen carefully when others are speaking.This develops active listening skills, shows respect, and aids in understanding. It's crucial for effective communication.

3 - Everyone makes mistakes; it's okay to try again. This fosters resilience, encourages learning from errors, and reduces the fear of failure. It highlights the importance of perseverance.

4 - It's important to ask for help when you need it.This encourages seeking support, recognizing limitations, and understanding that it's a sign of strength, not weakness.

5 - Be kind to everyone. This extends beyond just treating others well; it emphasizes inclusivity, compassion, and understanding towards all individuals, regardless of their differences.

6 - Sharing is caring.This teaches the importance of generosity, cooperation, and considering the needs of others. It's a foundational concept for building positive relationships.

7 - Try your best.This emphasizes the importance of effort and personal growth, regardless of the outcome. It encourages a positive attitude towards challenges.

These wisdoms are often conveyed through stories, classroom rules, teacher guidance, and interactions with peers. They form a moral and social compass that helps children navigate their early years and beyond. While we might refine or expand on these ideas as we grow, their core messages often stick with us throughout life.

Fun Animal Facts

Here are 7 fun animal facts perfect for primary school children:

1 - Male seahorses give birth to their babies: The female lays eggs in a pouch on the male's belly, and he takes care of them until they hatch.

2 - Octopuses have three hearts: Two pump blood through the gills, and one pumps it to the rest of the body.

3 - A blue whale's tongue can weigh as much as an elephant: They are the largest animals on Earth!

4 - Butterflies taste with their feet: They have taste sensors on their legs to find out if a leaf is good to eat.

5 - Some frogs can freeze solid in winter and thaw out alive in spring: This amazing ability helps them survive cold temperatures.

6 - Kangaroos cannot walk backward: Their big tails and strong legs make it difficult.

7 - starfish doesn't have blood or a brain: They have a nervous system but no central brain, and they use seawater instead of blood.

These are just a few of the many amazing facts about animals! The animal kingdom is full of surprises.

Country Facts

Let's explore some fun facts about 7 different countries that you might find interesting!

1 - Canada: It has more lakes than any other country, and it's where maple syrup, a yummy topping for pancakes, comes from!

2 - Madagascar: This island country is home to lemurs, funny-looking primates that are found nowhere else in the world.

3 - Australia: It's home to kangaroos and koalas, and some of its beaches have sand that squeaks when you walk on it!

4 - Mexico: They celebrate the Day of the Dead with colorful decorations and sugar skulls to remember their loved ones.

5 - China: The Great Wall of China is so long that it can be seen from space (though it's debated how easily)! They also invented paper and the compass.

6 - India: It's the birthplace of yoga and has many colorful festivals, like Holi, where people throw colored powder at each other.

7 - Switzerland: Famous for its delicious chocolate and cheese, and it has many tall, snowy mountains called the Alps.

We hope these snippets give you a fun glimpse into different countries around the world! Each one has its own unique and fascinating things to discover.