Long Multiplication: 40 × 8

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

What is 40 × 8?

Answer

40 × 8 =
320

One partial product: 40 × 8 = 320. 8 × 40 gives the same 320.

40 × 8 in a column

40
×8
320

In the column: product 320.

Step by step: 40 × 8

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 8: 40 × 8 = 320.
    • 0 × 8 = 0. Write 0.
    • 4 × 8 = 32. Write 2 and carry 3.
    • No digits are left, so the carried 3 is written in front: the partial product is 320.
  2. Product320

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Recalculate with different values ↑

Products of 40

MultiplicationProduct
30 × 8240
31 × 8248
32 × 8256
33 × 8264
34 × 8272
35 × 8280
36 × 8288
37 × 8296
38 × 8304
39 × 8312
40 × 8320
41 × 8328
42 × 8336
43 × 8344
44 × 8352
45 × 8360
46 × 8368
47 × 8376
48 × 8384
49 × 8392

FAQ

What is 40 × 8?

40 × 8 = 320

Is 40 × 8 the same as 8 × 40?

Yes. Multiplication is commutative, so both come to 320. Only the working differs: this page multiplies by 8, which gives a single partial product.

How do you check that 40 × 8 = 320?

Divide the product back by one of the factors: 320 ÷ 8 = 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 × 8?

There is only one: the multiplier 8 has a single digit, so 40 × 8 = 320 is written straight under the line, with no addition step.

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