Arithmetic Study Guide

Addition

Addition is the process of combining two or more numbers to find their total sum. The symbol for addition is "+". For example:

• 3 + 4 = 7
• 12 + 5 = 17
• 25 + 30 = 55

Subtraction

Subtraction is the process of taking one number away from another. The symbol for subtraction is "−". For example:

• 8 - 3 = 5
• 15 - 7 = 8
• 40 - 20 = 20

Multiplication

Multiplication is the process of repeated addition. The symbol for multiplication is "×" or "*". For example:

• 4 × 3 = 12
• 7 * 5 = 35
• 10 × 8 = 80

Division

Division is the process of splitting a number into equal parts. The symbol for division is "÷" or "/". For example:

• 12 ÷ 3 = 4
• 21 / 7 = 3
• 40 ÷ 5 = 8

Order of Operations

When performing arithmetic operations, it's important to follow the correct order of operations: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Practice Problems

Now that you've learned about the basic operations of arithmetic, it's time to put your knowledge to the test with some practice problems. Try solving the following:

1. Calculate the sum of 28 and 49.
2. Find the difference between 85 and 37.
3. Multiply 12 by 6.
4. Divide 63 by 9.

Remember to apply the order of operations when solving these problems. Good luck!