Long Multiplication: 15 × 12

Long Multiplication Calculator

What is 15 × 12?

Answer

15 × 12 =

180

2 partial products: 15 × 2 = 30 and 15 × 10 = 150. 12 × 15 gives the same 180.

15 × 12 in a column

		1	5
×		1	2
		3	0
+	1	5	0
	1	8	0

Step by step: 15 × 12

Step 1Multiply the multiplicand by the last digit of the multiplier, 2: 15 × 2 = 30.
- 5 × 2 = 10. Write 0 and carry 1.
- 1 × 2 = 2, plus the carried 1 makes 3. Write 3.
Step 2The next digit of the multiplier is 1, and it stands for 10: 15 × 10 = 150.
- 5 × 1 = 5. Write 5.
- 1 × 1 = 1. Write 1.
Sum of the partial products30 + 150 = 180

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See Also

Times Table Chart - Any number from 1 to 100, rows from ×1 to ×12
Long Division Calculator - Step-by-step long division with detailed explanation
Multiplying Fractions Calculator - Multiply fractions, mixed numbers and whole numbers step by step
Factors of a Number - List all Factors and Factor Pairs of a Number
Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers

Recalculate with different values ↑

Products of 15

Multiplication	Product
15 × 1	15
15 × 2	30
15 × 3	45
15 × 4	60
15 × 5	75
15 × 6	90
15 × 7	105
15 × 8	120
15 × 9	135
15 × 10	150
15 × 11	165
15 × 12	180

FAQ

What is 15 × 12?

15 × 12 = 180

Is 15 × 12 the same as 12 × 15?

Yes. Multiplication is commutative, so both come to 180. Only the working differs: this page multiplies by 12, which gives 2 partial products.

How do you check that 15 × 12 = 180?

Divide the product back by one of the factors: 180 ÷ 12 = 15 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 15 × 12?

They are 30 + 150, and adding them gives 180.

See Also