What is 9 × 1?
"Multiplication Facts" Calculator
What is 9 × 1?
Answer
9 × 1 = 9
9 × 1 = 9 — one of the 45 multiplication facts that the times tables hold. Below: the two divisions that undo it and the row it sits in.
Where the Answer Comes From
Multiplying by 1 leaves a number exactly as it was, so 9 × 1 is 9 without any adding at all. That property is why one is called the identity for multiplication.
The Factors Can Be Swapped
1 × 9 comes to the same 9, because multiplication is commutative. The two are read differently — 9 × 1 is 1 lot of 9, 1 × 9 is 9 lots of 1 — and that is what makes swapping them a way to check the answer rather than a restatement of it.
1 × 9 = 9
The Divisions That Undo It
Where It Sits in the Tables
The same fact appears in two rows of the grid — in the 9 times table and in the 1 times table. Knowing one row therefore covers part of the other.
See Also
- Times Table Chart - Any number from 1 to 100, rows from ×1 to ×12
- Long Multiplication Calculator - Column multiplication with partial products, step by step
- Long Division Calculator - Step-by-step long division with detailed explanation
- Factors of a Number - List all Factors and Factor Pairs of a Number
About "Multiplication Facts" Calculator
Multiplying by one is the case where nothing is added at all: the other number is already the answer. Enter two numbers from 1 to 9 (e.g. '9' and '1') to get the product, how it is built, the two divisions that undo it and the table row it belongs to.
"Multiplication Facts" Calculator
The 9 times table row
FAQ
What is 9 × 1?
9 × 1 = 9
Is 1 × 9 the same as 9 × 1?
Yes — both come to 9, because multiplication is commutative. They are read differently, though: 9 × 1 is 1 lot of 9, and 1 × 9 is 9 lots of 1.
What divided by what gives 9?
9 ÷ 9 = 1 and 9 ÷ 1 = 9. Division undoes multiplication, so each of these two checks the other.