Math Games and Math Worksheets

Mathematics Competition for Elementary School

admin — Mon, 17 May 2010 11:10:37 +0000

1. Karl had salary reduced by 10%. He was later promoted and his salary was increased by 10%. If his original salary was $20.0000, what is his present salary ?
A. $ 16.200
B. $ 19.800
C. $ 20.000
D. $ 20.500

2. The prime numbers between 10 and 20 are added together to form the number Q. What is the larges prime divisor of Q ?
A. 2
B. 3
C. 5
D. 7

Answer ?
1. B. $ 19.800
2. C. 5

Mathematics Olympiad: Circle

admin — Thu, 29 Apr 2010 09:49:22 +0000

This problem is a mathematics olympiad problem for elementary school. The radius of each circle in the picture below is one unit.

Determine the area of L! (Phi = 3

Answer:
0.86 unit area

The area of L

= (square area ABCD) – 4(1/4 x circle area)

= square area ABCD – circle area

= (2×2) – (phi x 1^2)

= 4- phi

= 4 – 3, 14

= 0,86

Writing Variables Expressions

admin — Thu, 29 Apr 2010 09:10:38 +0000

In everyday conversation, people use word phrases that express mathematical ideas. As you read the following conversation, notice the use of mathematical expressions.

“Hi Frank. How was the car was ?” Fabulous, Gina ! We made twice as much maoney as we did last year. We washed 80 more cars than last year!” Great ! That means we’ll be able to lower the cost of the band trip by $2 per person.”

1. Identify the mathematical phrases in Frank and Gina’s conversation.

Even though you know how much money the band made last year, you can express the amount the made this year by writing expression a variable expression.
2. Let m represent the money the band made last year. Then the money they made this year is.

3. Let c represent the number of cars they washed last year. Then the number of cars the washed this year is c.

When you know the value of a variable, you can write a numerical expression.

4. Suppose the band made $240 from last years car was. Then the numerical expression for the money the made this year is.

5. Suppose the washed 50 cars last year. Then the numerical expression for the cars they was this year is 50.

6. Suppose t was the cost per person for the band trip before the car wash. Write a variable expression describing the cost of the trip after the car wash

MathIsFun.Com

admin — Mon, 15 Mar 2010 12:51:30 +0000

How often do you hear the following terms.
1. Mathematics is Easy
2. Mathematics is Fun
3. Mathematics is Beautiful

Or maybe you often hear the following terms.
1. Mathematics is Difficult
2. Mathematics is annoying
3. Mathematics was Bikin Dizziness

and so on. Which is more often you listen to? In the first section above, if the terms above is only to please you for a moment? Meanwhile, in the second section, is it true that Mathematics as these sentences ?

In spite of it all, Mathematics can be easily contrived, can also labored hard, depending on who is going to do it. Difficult problem can be made easily and vice versa. According to my math skills do not matter because the talent, but more on how often we practice. If we often do the questions, we certainly can say that mathematics is not as difficult as we imagine. The question is whether we want berlatiha or not.

If you become a parent, train your child to do math problems, because it will help your child’s life someday. Mathematics is useful in life to learn the other sciences. So, make it a habit your child to do math problems from now on.

Learn ways of Mathematics every day continue to be developed. As in Mathisfun.Com site. I think these sites kretif enough. At these sites, many ways to learn mathematics. Looks interesting and interactive. Some use the game / games, puzzles and others. Some games developed with flash animation software. When did it in Indonesia, there are sites like this? Surely this will allow teachers to explain and students will also understand. Maybe you’ll make it. Such as the title of this article, MathisFun.Com, interesting is not it?

Menus in Mathisfun.Com are:
1. Numbers
2. Algebra
3. Geometry
4. Data
5. Measure

and so on. If you have a lot of time, certainly I will make it, but when you? Hopefully soon coming soon.

Regards,
Istiyanto

Math Problem Solving: Grade 6 Part II

admin — Fri, 26 Feb 2010 05:14:00 +0000

Consider an equilateral triangle below. Two of its sides are known to have long each (2x) and x = 15 cm.

What is the circumference of the triangle ?

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Answer:
90 cm

Math Problem Solving Grade 6

admin — Fri, 26 Feb 2010 05:04:44 +0000

Four isosceles triangle is the same, each side of its base is a square that has a length of 6 cm.

From the picture above, will set up a pyramid (square pyramid) by connecting each point of the triangle top. If after the formation of a high pyramid paramida note that these are 4 cm. What area of the entire surface (side) of the pyramid ?

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Answer:
96 cm²

Grade Six

admin — Fri, 26 Feb 2010 04:08:27 +0000

Rini was assigned to take a journey from place A to place B on the condition that he should not follow the path of straight line from A to B. He was given 2 choices, first take the form of half-way great circle arc AB and the second through an arc-shaped path AC followed the path that shaped arc CB.

Given that the distance of a place A to place B is 10 km and the C right in the middle of the line AB. Determine how the difference in distance traveled by the first choice and the distance traveled by the second option !

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Answer:
The difference is 0 (zero)

Magic Square

admin — Thu, 25 Feb 2010 11:21:17 +0000

Note the rectangular 4 x 4 below!

If each row, column and diagonal on the square at the top should be filled by all the numbers 1, 2, 3 and 4 the value of K + N is ….

A. 3
B. 4
C. 5
E. 6

Click read more to know the answer.
Answer:
A.3

Math For Grade Six-Part II

admin — Wed, 24 Feb 2010 11:06:54 +0000

Problem 1
A set of five different positive integers has an average (arithmetc mean) of 11. What is the largest possible number in this set ?
A. 45
B. 35
C. 35
D. 44

Problem 1
Three tenths of our planet, earth is covered with land and rest is covered with water. Ninety-seven percent of water is salt water and rest is fresh water. What is percentage of the earth is covered in fresh water ?
A. 20.1 %
B. 79.9 %
C. 32.1 %
D. 2.1 %

Click read more to know the answer.
Answer
Problem 1: A.45
Problem 2: D. 2.1 %

Math For Grade Six

admin — Tue, 23 Feb 2010 12:57:00 +0000

In the given diagram, what is the value of x ?

A. 20^o
B. 80^o
C. 100^o
D. 120^o

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Answer:
B. 80^o