Basic Calculator - Free Online Calculator for Math Operations

Step-by-Step Examples

Example 1: Addition

Problem: 25 + 17

Step 1: Line up the numbers

Step 2: Add the ones place: 5 + 7 = 12 (write 2, carry 1)

Step 3: Add the tens place: 2 + 1 + 1 (carry) = 4

Result: 42

Example 2: Subtraction

Problem: 84 - 37

Step 1: Line up the numbers

Step 2: Subtract ones: 4 - 7 (need to borrow), 14 - 7 = 7

Step 3: Subtract tens: 7 - 3 = 4

Result: 47

Example 3: Multiplication

Problem: 12 × 8

Step 1: Multiply 12 by 8

Step 2: 8 × 2 = 16 (write 6, carry 1)

Step 3: 8 × 1 = 8, plus carry: 8 + 1 = 9

Result: 96

Example 4: Division

Problem: 144 ÷ 12

Step 1: Divide 144 by 12

Step 2: How many times does 12 go into 14? 1 time (12)

Step 3: Remainder: 14 - 12 = 2, bring down 4 to get 24

Step 4: How many times does 12 go into 24? 2 times (24)

Result: 12

Example 5: Combined Operations

Problem: (8 + 4) × 3 - 6

Step 1: Solve parentheses first: 8 + 4 = 12

Step 2: Multiply: 12 × 3 = 36

Step 3: Subtract: 36 - 6 = 30

Result: 30

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