Long Multiplication: 100 × 25

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

What is 100 × 25?

Answer

100 × 25 =
2,500

2 partial products: 100 × 5 = 500 and 100 × 20 = 2,000. 25 × 100 gives the same 2,500.

100 × 25 in a column

100
×25
500
+2000
2500

In the column: product 2,500.

Step by step: 100 × 25

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 5: 100 × 5 = 500.
    • 0 × 5 = 0. Write 0.
    • 0 × 5 = 0. Write 0.
    • 1 × 5 = 5. Write 5.
  2. Step 2The next digit of the multiplier is 2, and it stands for 20: 100 × 20 = 2,000.
    • 0 × 2 = 0. Write 0.
    • 0 × 2 = 0. Write 0.
    • 1 × 2 = 2. Write 2.
  3. Sum of the partial products500 + 2,000 = 2,500

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100 × 5500
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100 × 101,000
100 × 111,100
100 × 121,200
100 × 151,500
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100 × 202,000
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100 × 10010,000

FAQ

What is 100 × 25?

100 × 25 = 2,500

Is 100 × 25 the same as 25 × 100?

Yes. Multiplication is commutative, so both come to 2,500. Only the working differs: this page multiplies by 25, which gives 2 partial products.

How do you check that 100 × 25 = 2,500?

Divide the product back by one of the factors: 2,500 ÷ 25 = 100 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 100 × 25?

They are 500 + 2,000, and adding them gives 2,500.

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