# Shortcut to multiply any number from 90-99 by 5

In the previous post we learnt how to multiply any number from 80 to 89 by 5 in seconds.Today we are going to learn another cool trick to multiply any number from 90 to 99 by 5 in seconds.

Let us see the steps

**Step 1:** Assume the base as 90

**Step 2:** Multiply the base by 5

**Step 3:**Multiply the unit place digit by 5

**Step 4:**Add the results obtained in step 2 and step 3 to get

final answer.

Now lets consider a few examples to understand better

**Example 1:93 x 5 = ?**

**Step 1:**We assume the base as 90.

**Step 2:**Multiplying the base by 5

We get 90 x 5 = 450

**Step 3:**Multiplying the unit place digit by 5

We get 3 x 5 =15

**Step 4:**Adding results obtained in step 2 and step 3

We get 450 + 15 = 465

**Ans 93 x 5 =465**

**Example 2:98 x 5 = ?**

**Step 1:**We assume the base as 90.

**Step 2:**Multiplying the base by 5

We get 90 x 5 = 450

**Step 3:**Multiplying the unit place digit by 5

We get 8 x 5 = 40

**Step 4:**Adding results obtained in step 2 and step 3

We get 450 + 40 = 490

**Ans 98 x 5 =490**

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