Long Multiplication: 40 × 25

Long Multiplication Calculator
Multiplicand (number to be multiplied)
Multiplier (number to multiply by)

What is 40 × 25?

Answer

40 × 25 =
1,000

2 partial products: 40 × 5 = 200 and 40 × 20 = 800. 25 × 40 gives the same 1,000.

40 × 25 in a column

40
×25
200
+800
1000

In the column: product 1,000.

Step by step: 40 × 25

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 5: 40 × 5 = 200.
    • 0 × 5 = 0. Write 0.
    • 4 × 5 = 20. Write 0 and carry 2.
    • No digits are left, so the carried 2 is written in front: the partial product is 200.
  2. Step 2The next digit of the multiplier is 2, and it stands for 20: 40 × 20 = 800.
    • 0 × 2 = 0. Write 0.
    • 4 × 2 = 8. Write 8.
  3. Sum of the partial products200 + 800 = 1,000

Similar examples to practise

See Also

Products of 40

FAQ

What is 40 × 25?

40 × 25 = 1,000

Is 40 × 25 the same as 25 × 40?

Yes. Multiplication is commutative, so both come to 1,000. Only the working differs: this page multiplies by 25, which gives 2 partial products.

How do you check that 40 × 25 = 1,000?

Divide the product back by one of the factors: 1,000 ÷ 25 = 40 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 40 × 25?

They are 200 + 800, and adding them gives 1,000.