# How many zeros are there at the end of the first 100 multiples of 10?

## How many zeros are there at the end of the first 100 multiples of 10?

111 zeroes

## Is there a trick for multiplying by 6?

**There's** no special rule for **multiplying by 6**. You just have to remember this. When you **multiply** an even number by **6**, the last digit of the answer is the same as the number that's being **multiplied**.

## Is there a trick for multiplying by 7?

**Multiply by 7** ? **The** second digits of **the** answers for numbers 1 to 10 do not repeat. So, **there's** really no secret **trick for multiplying by 7**.

## How do you get big math problems in your head?

Use subdivision to quickly calculate **large** numbers in **your head**. For example, if you have to find the result of 32 x 125, divide the first number in half and multiply the second number by two until you have an easy **problem** to solve (16 x 250; 8 x 500; 4 x 1000 = 4,000).

## How can you tell your brain faster?

**10 tricks for doing fast math**

- Adding large numbers. Adding large numbers just in your head can be difficult. ...
- Subtracting from 1,000. ...
- Multiplying 5 times any number. ...
- Division tricks. ...
- Multiplying by 9. ...
- 10 and 11 times tricks. ...
- Percentage. ...
- Quickly square a two-digit number that ends in 5.

## How do you find 3%?

Example 2. Find **3**% of $4,000. First write it as 0.

## How do you find 25% of a number?

To **calculate 25** percent of a **number**, simply divide it by 4. For example, **25** percent of 12 is 12 divided by 4, or 3.

## What is 25% off?

Percent Off Table For 25.

## What number is 25% of 80?

20

## What number is 15% of 280?

42

## What number is 80% of 8?

Latest calculated numbers percentages