Friday, May 3, 2013

Math 40 Solving Problems

Introduction to Math 40 Solving Problems:
In mathematics, numeration is one of the main sources describing about numerals such as number system. The number is also used for abstract object and symbolic representations of numbers. There is addition, multiplication, division, subtraction operation in math. The common usage of math is to solve the problem and finding the solution. The given problem can be performed by any one of the above operation. Let us see about math 40 solving problems in this article.

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Example Problems for Math 40 Solving Problems


Solving the below problem using addition, subtraction, multiplication and addition operation in math.

Using Addition Operation in Math

Example 1:

Add 40 and 60?

Solution:

Let us add the given problem.

Write the given whole number 40 first and then write the given whole number 60 second one by one.

40 (addend)

(+)   60 (addend)

--------------

100

--------------

The sum for adding 40 and 60 is 100.

Using Subtraction Operation in Math

Example 2:

Subtract 40 and 10?

Solution:

Let us subtract the given problem.

Write the given whole number 40 first and then write the given whole number 10 second one by one.

40 (minuend)

(-)   10 (subtrahend)

--------------

30 (difference)

---------------

The difference for subtracting 40 and 10 is 30.

Using Multiplication Operation in Math

Example 3:

Multiply 40 and 8?

Solution:

Let us write the given problem as in the below form. Here, 40 is multiplicand and 8 is multiplier.

40 ×

8

----------------

320

----------------

The product for multiplying 40 × 8 is 320.

Using Division Operation in Math

Example 4:

Divide 40 by 10?

Solution:

Let us write the given problem is in form of 40 ÷ 10 and put the divisor on the left side of the division bracket and dividend on the right side of the division bracket.

Check whether the 10 goes into 4 or not. The number 10 cannot go into 4. So that takes the dividend as two digit number. Now the divisor 10 goes into 40 for 4 times. Continue with the division method for the given problem.

10)40(4

0

----------------

40

40

----------------

0

-----------------

The quotient for dividing 40 by 10 is 4.



Practice Problems for Math 40 Solving Problems


1. Add 40 and 80.

Answer: 120

2. Subtract 80 and 40.

Answer: 40

3. Multiply 40 and 5.

Answer: 200

4. Divide 40 by 5.

Answer: 8

Free Math Practice Integers

Introduction to free math practice integers:

An integer is a set of whole numbers. Whole numbers above zero is said to be positive integers denoted as ‘+’ sign and whole numbers below zero is said to be negative integers denoted as ‘-‘. An integer with zero is said to be neither negative nor positive and it does not have any sign in math. Here, integers can be performed with four basic operations such as addition, subtraction, multiplication, and division. The positive integers can be written with or without the sign. Let us see free math practice integers in this article.



Practice Integer Problems - Practice Adding Integers in Math


Adding same signed free Integers:

Example 1:

15 + 9

Solution:

The absolute value of 15 and 9 is 15 and 9. Put the positive sign before the result.

15 + 9 = 24

Example 2:

(-5) + (-7)

Solution:

The absolute value of -5 and -7 is 5 and 7. Put the negative sign before the result.

(-5) + (-7) = - (5 + 7) = - 12

Adding different signed free Integers:

Example 3:

2 + (-8)

Solution:

The absolute value of -8 and 2 is 8 and 2. Put the larger number sign before the answer.

8 –2 = 6

Therefore, the solution for adding 2 + (-8) is -6.


Practice Subtracting Integers in Math


Example 4:

20 - (-8)

Solution:

The absolute value of 20 and -8 is 20 and 8. Subtract the integers and put the larger number sign.

20 – (-8) = 20 + 8 = 28


Practice Multiplying Integers in Math


Multiplying same signed free Integers

Example 5:

3 × 6

Solution:

The absolute value of 3 and 6 is 3 and 6. Put the same sign as it is in the given problem.

3 × 6 = 18

Example 6:

(-5) × (-5)

Solution:

The absolute value of -5 and -5 is 5 and 5.

5 × 5 = 25

Put the same sign as it is in the given problem – 25.

Multiplying different signed free Integers:

Example 7:

(-6) × (8)

Solution:

The absolute value of -6 and 8 is 6 and 8.

6 × 8 = 48

Put the negative sign if it is sign of one of the integer in the given problem. Therefore, the solution is -48.



Practice Dividing Integers in Math


Dividing same signed Integers:

Example 8:

36 ÷ 6

Solution:

The absolute value of 36 and 6 is same. Therefore, the solution for dividing 36 ÷ 6 is 6.

Dividing different signed Integers:

Example 9:

42 ÷ -7

Solution:

The absolute value of 42 and -7 is 42 and 7. Put the negative sign in the result, because there is a negative sign in front of the integers.

Therefore, the solution for dividing 42 ÷ -7 is -6.