Long Multiplication: 20 × 15

Long Multiplication Calculator

What is 20 × 15?

Answer

20 × 15 =

300

2 partial products: 20 × 5 = 100 and 20 × 10 = 200. 15 × 20 gives the same 300.

20 × 15 in a column

		2	0
×		1	5
	1	0	0
+	2	0	0
	3	0	0

Step by step: 20 × 15

Step 1Multiply the multiplicand by the last digit of the multiplier, 5: 20 × 5 = 100.
- 0 × 5 = 0. Write 0.
- 2 × 5 = 10. Write 0 and carry 1.
- No digits are left, so the carried 1 is written in front: the partial product is 100.
Step 2The next digit of the multiplier is 1, and it stands for 10: 20 × 10 = 200.
- 0 × 1 = 0. Write 0.
- 2 × 1 = 2. Write 2.
Sum of the partial products100 + 200 = 300

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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 20

Multiplication	Product
20 × 1	20
20 × 2	40
20 × 3	60
20 × 4	80
20 × 5	100
20 × 6	120
20 × 7	140
20 × 8	160
20 × 9	180
20 × 10	200
20 × 11	220
20 × 12	240
20 × 15	300

FAQ

What is 20 × 15?

20 × 15 = 300

Is 20 × 15 the same as 15 × 20?

Yes. Multiplication is commutative, so both come to 300. Only the working differs: this page multiplies by 15, which gives 2 partial products.

How do you check that 20 × 15 = 300?

Divide the product back by one of the factors: 300 ÷ 15 = 20 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 20 × 15?

They are 100 + 200, and adding them gives 300.

See Also