Notes on Basic Math

Introduction to Notes on Basic Math

In mathematics all calculations made with the basic math operation. The notes on basic math operation names are addition, subtraction, division, multiplication. These functions are mainly used in math and computer. The basic math helps us to find out the result in accurate manner. Here we will see about these four methods notes.

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Addition and Subtraction


The notes of addition and subtraction is as follows.

Addition

Addition is used to adding the numbers. We use the symbol +. The other name is sum, plus, increment, total.

Examples

1) Adding the following two numbers. 20, 30.

Solution

The first number is 20

The second number is 30

So add the two numbers= 20

30 (+)

50

2) What is the total of the following numbers? 120, 30, 170, 40?

Solution

The given numbers are 120, 30, 170, and 40.

Total = 120

30 (+)

170

40

360

Subtraction

It is used to find the difference between two numbers. The symbol is -. The other words is minus, less, Decrease.

Examples

1) What is the difference between the following two numbers? 41, 36.

Solution

The given numbers are 41, 36.

The difference between the two numbers is = 41

36 (-)

5

2) Find out the difference between the following numbers? 46, 57.

Solution

Given numbers are 46 and 57.

The difference is 46

57 (-)

-11

The answer is -11. Because the 1st number 46 is less than 2nd number 57. So the symbol must be put which the number is big. I have recently faced lot of problem while learning Quadratic Equation Formulas, But thank to online resources of math which helped me to learn myself easily on net.


Multiplication and Division


The notes about multiplication and division is as follws.

Multiplication

It is used to product the numbers. the symbol is x. the other name is multiplication, multiply.

Examples

1) Multiply the following numbers. 12, 4.

Solution

The given numbers are 12 and 4.

The multiplication is 12 x 4= 48.

2) What is the multiplication of the following numbers? 13, 2, 6.

Solution

Given numbers are 13, 2 and 6.

The multiplication is 13 x 2 x 6 =13 x 12=156.

Division

It is one of the basic math operations. The symbol is ÷. The other name is division, quosient.This is one of the basic math operation.

Examples

1) Divide the following numbers. 12/4

Solution

The given number is 12. The divisor is 4.

The division is 12/4=3.

2) Divide the following number 20 with 5.

Solution

The division is 20/5=4.

These are the notes of the basic math.

2nd Grade Math Solve

Introduction to second grade math:

The second grade math defines the basic mathematics for the students of second grade. This involves the basic addition and subtraction with two digits and three digits. It also involves the counting of numbers and number patterns. The second grade syllabus teaches the students about the place values, comparing numbers, patterns, and also teaches about the time and date graph.

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Addition in second grade


Addition in second grade math to solve:

Addition is one of the term which is used in arithmetic operation. In addition we are going to add two elements and give the answer. Addition can be done for numbers with any number of digits. Addition is identified by using the sign ‘+’.

Addition with two digits in second grade math:

Here we are going to add two digit numbers. To solve the two digit addition the example problems are given below.

Problem 1: Solve: 25 +36

Here we are going to add the two digit number 25 and 36.

2 5

3 6

-----

6 1

-----

While solve this sum we add 5 and 6 we get a remainder 1 which is added along with 3 and 2. Hence the answer is 61.

Problem 2: Solve: 61 +76

Here we are going to add the two digit numbers 61 and 76.

6 1

7 6

------

1 3 7

-------

Thus the answer is 137.

Addition with three digits in second grade math:

Here we are going to see about the addition of three digit numbers. The example problems to solve three digit additions are given.

Problem 1: Add 369 and 741.

3 6 9

7 4 1

---------

1 1 1 0

---------

Here when we solve 9 and 1 we get the remainder 1 which is added along with 6 and 4 but it also give remainder 1. Thus this remainder 1 is added along with 7 and 3. Therefore the answer is 1110.

Problem 2: Add 252 and 141.

2 5 2

1 4 1

--------

3 9 3

--------

Therefore the answer is 393.

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Subtraction in second grade


Subtraction in second grade math to solve:

Subtraction is the inverse process of addition which is also a term used in arithmetic operations. Subtraction is identified by using the sign ‘-‘.  In the subtraction there are two parts present minuend and also subtrahend. While subtracting the subtrahend from the minuend it gives the difference.

Subtraction with two digits in second grade math:

Here we are going to subtract the two digit numbers. To solve the subtraction with two digits the example problems are given.

Problem 1: Solve: 68 – 24.

6 8

2 4

------

4 4

------

Therefore the answer is 44.

Problem 2: Solve 82 – 53.

8 2

5 3

------

2 9

------

Her in this problem we cannot subtract 3 from 2 hence we are borrowing a 1 from 8 so 2 becomes 12. By subtracting 3 from 12 we get the answer 9. And by subtracting 7 and 5 we get 2.

Subtraction with three digits in second grade math:

Here we are going to subtract three digit numbers.

Problem 1: Subtract 742 and 431.

7 4 2

4 3 1

--------

3 1 1

--------

Therefore the answer is 311.



Problem 2: Subtract 666 and 321.

6 6 6

3 2 0

--------

3 4 6

--------

Therefore the answer is 346.