- HubPages
*»* - Education and Science

# Multiplying by 5. A cool math trick for multiplying any number by 5 (number trick)

If you are looking for a quick way of multiplying by 5 then follow these couple of steps:

**Step 1: Multiply your number by 10.**

**Step 2: Work out half of your answer from step 1.**

Let’s put these two steps into practice.

**Example 1**

Use the math trick for multiplying by 5 to work out 24 × 5.

Step 1: Multiply your number by 10

24 × 10 = 240

Step 2: Work out half of your answer from step 1.

½ of 240 = 120

**Example 2**

Use the math trick for multiplying by 5 to work out 62 × 5.

Step 1: Multiply your number by 10

62× 10 = 620

Step 2: Work out half of your answer from step 1.

½ of 620 = 310

**Example 3**

Use the math trick for multiplying by 5 to work out 73 × 5.

Step 1: Multiply your number by 10

73 × 10 = 730

Step 2: Work out half of your answer from step 1.

½ of 730 = 365

Let’s take a look at a couple of examples of multiplying numbers over 100 by 5:

**Example 4**

Use the math trick for multiplying by 5 to work out 206 × 5.

Step 1: Multiply your number by 10

206 × 10 = 2060

Step 2: Work out half of your answer from step 1.

½ of 2060 = 1030

**Example 5**

Use the math trick for multiplying by 5 to work out 480 × 5.

Step 1: Multiply your number by 10

480 × 10 = 4800

Step 2: Work out half of your answer from step 1.

½ of 4800 = 2400

Let’s do one last example on a number over 1000

**Example 6**

Use the math trick for multiplying by 5 to work out 2846 × 5.

Step 1: Multiply your number by 10

2846 × 10 = 28460

Step 2: Work out half of your answer from step 1.

½ of 28460 = 14230

3