Long Multiplication: 150 × 4

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

What is 150 × 4?

Answer

150 × 4 =
600

150 × 4 and 4 × 150 are the same product — the order of the factors never changes the answer, only the working. Below, 150 is multiplied by 4 in a column, digit by digit.

150 × 4 in a Column

The multiplicand goes on top, the multiplier underneath, both aligned on the right. The multiplier has a single digit, so there is one partial product and the answer goes straight under the line.

 150
×  4
 600
150 × 4 = 600

Step-by-Step Solution

Step 1: Multiply the multiplicand by the last digit of the multiplier, 4: 150 × 4 = 600.

  • 0 × 4 = 0. Write 0.
  • 5 × 4 = 20. Write 0 and carry 2.
  • 1 × 4 = 4, plus the carried 2 makes 6. Write 6.

150 × 4

=

600

Check It, and What It Is Not

Check by dividing back. Multiplication and division undo each other, so 600 ÷ 4 = 150 must come out exactly, with no remainder.

Fractions are a different calculation. Both factors here are whole numbers; for 2/3 or 2 3/4 use the fraction multiplication calculator, which multiplies numerators and denominators separately.

150 × 4 is a number, not an area. If those are the sides of a room in feet, the answer is 600 square feet — the same arithmetic, a different question, and it is answered by the square footage calculator.

See Also

Long Multiplication Calculator

This calculator multiplies two whole numbers the way it is done on paper: digit by digit, carrying where the column overflows, then adding the partial products together. For example, it can help you find out what is 150 × 4? (The answer is: 600). Enter the multiplicand (e.g. '150') and the multiplier (e.g. '4') and hit the button. The order of the two numbers does not matter — 150 × 4 and 4 × 150 are the same product — so either number can go on top. Fractions and mixed numbers belong to the fraction multiplication calculator, and the reverse operation is long division.

Products of 150

FAQ

What is 150 × 4?

150 × 4 = 600

Is 150 × 4 the same as 4 × 150?

Yes. Multiplication is commutative, so both come to 600. Only the working differs: this page multiplies by 4, which gives a single partial product.

How do you check that 150 × 4 = 600?

Divide the product back by one of the factors: 600 ÷ 4 = 150 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 150 × 4?

There is only one: the multiplier 4 has a single digit, so 150 × 4 = 600 is written straight under the line, with no addition step.