Aplusclick Math Apps for Grades 1 Through 12 Are on Apple Store and Google Play

5000 A+Click Math Problems are available offline. If you have problems with Internet, Aplusclick has a solution for you. Aplusclick problems are now available on App Store and Google Play. You can solve all of 5000 problems working offline.

Aplusclick has just launched a series of apps for iPhone, iPad, and Android. It includes Math for grade 1 through 12. You can track your progress or reset your score anytime. Perfect practice makes perfect!

Where do you get it?

Online: www.aplusclick.com ,   iPhone or iPad,    Android: search for Aplusclick

     

Have Brain? Use it!

Find the area of the rectangle if the numbers show the areas of the corresponding triangles.

Find the area of the shape.

How many squares of all different sizes are on a chessboard?

Pancake Math

“Archaeological evidence suggests that pancakes are probably the earliest and most widespread cereal food eaten in prehistoric societies.” – Wikipedia

 

What is the maximum number of sections into which a pancake may be divided into by four straight cuts through it?

Here more difficult questions go:

1) Is it possible to divided it so that all sections have equal area?

2) How many pancakes are needed to reach your height if they are squeezed by the weight of the upper pancakes?

3) If I spent 30 grams of batter for a pancake (French-style crêpe) of 30 cm in diameter how much batter do I need for the square pancake of the same thickness and the side length of 30 cm?  

 

These and many other practical “pancake” questions are presented in the Applied Math section of A+Click series, which already includes more than 4500 questions.

 

Geek’s Questions: The Art of Asking Yourself

A+Click contributor Gerry Geek just published a new true story: 

A group of friends visit me. They eat and drink everything, even the cat’s food, and then leave. The fridge is empty – only a glass of milk is left. I give half of the milk to my cat Ben. He drinks half of it and then I drink half of what is left. Again, he drinks half of what is left and then I do the same. We continue until nothing is left. What proportion of the initial amount of milk did I drink in total?

I remember the moment when I saw Jane for the first time. We were sitting at the same table at a tea room along with Mary and John. We looked at each other and I was sure that everybody immediately chooses another. If two boys and two girls choose a partner, then what is the probability that everybody chooses the person who chooses them?

Before I met Jane I had a relationship with three girls who lived in the same house. I sent three letters to them. If the postman put the letters into three different boxes without looking at the name of the recipient, what would be the probability that all girls received their letters?

Really Practical Math

Math can be really practical and useful!

For students.

For lock breakers.

For car racers.

For pool managers.

For family folks.

 

Funny Logic : Serious Math

Math is fun. Ten sample problems prove that math and logic can be interesting. It provides a link to collection of challenging math and logic puzzles.

Can be Math Funny? Try to solve 10 problems from A+Click.

An IQ Test that does not disappoint

What is the main problem with different IQ tests?

They are stupidly boring!

Most of them are based on specific types of questions. If you don’t know them, you are blocked and frustrated. If you know the specific types of questions, you can solve many of them.

Is it possible to balance objectivity and entertainment?

The A+Click team believes that the solution is diversifying the questions and adapting them to the tester’s ability. We have thus created a free IQ Test that:

1)    Includes more than 400 types of questions;

2)    Adapts to the age of the tester and his or her ability during the test; and

3)    Shows progress, even during testing.

Albert Einstein: “Learning is experience. Everything else is just information.”

Don’t believe me: try it : make your judgment by taking the challenge at www.aplusclick.com/iqtest.htm

It is free and funny.

Math: Practical Problems for Human Beings

 

There are many books Practical Problems in Math for Electricians, for Health Careers, Welders, etc. Nice!

Why there are not math Q&A just for people?

We tried to compile some of them in the presentation.

Enjoy!

 

Mr Barton’s Web Whizz Video on A+ Click Math

“I love NRICH, & whilst it remains my number one stop for rich maths puzzles & problems, this website might just be number two. There are literally 100s of puzzle & problems for students to solve. They are beautifully laid out on the page, making them absolutely ideal to project on the board to use as starter activities or extension work. I also suggest using them in the computer room as the website keeps a handy record of students’ progress through a series of puzzles. With the development of students creative thinking & problem solving growing in importance, this website is a must!” – Craig Barton

The Best Math Word Problems

What are real-life math problems?

What are the funniest word problems?

What are the shortest word problems?

What are the most difficult word problems?

What are the best word problems?

Math and logic word problems. Here my preferred word problems go:

Practical:

How many tennis balls can fit in a school bus?

A goldfish need 1000 cubic inches of water to live in. 
An aquarium is 20 inches in diameter. 

How many fish can live in an aquarium?

Funny:

1 costs $10; 20 costs $20. How much does 100 cost?

99% of nuts and 99% of a nut cost as much as all nuts. How many nuts are there?

At least two Londoners have the same number of hair. Correct?

80% of IT projects fail, and 20% of managers are female. How many male managers succeed?

Short:

Does clock hands overlap 22 times in 24h?

How many zeros are at the end of 99!?

Make 33 by using three 3s and any signs.

Difficult:

Six Millennium Prize Problems set by the Clay Mathematics Institute have yet to be solved.

http://en.wikipedia.org/wiki/List_of_unsolved_problems_in_mathematics

The Best:

Short + Funny + Practical + Difficult = Best

My preferred math and logic word problems are at www.aplusclick.org

The latest collection of the best free A+Click Puzzles are at Apple App Store