Table of Contents

## What is the multiplication of 1000?

To multiply a number by 1000, move all of its digits three places to the left. Multiplying a whole number by 1000 is the same as adding three zeros to the end of the number. To multiply a number by 1000, all digits of this number move three place value columns to the left.

**What is the rule for multiplying by 10 100 1000?**

When we multiply whole numbers by 10, 100, 1000, we simply rewrite the numbers and put some extra zeros at the end. Rules for the multiplication by 10, 100 and 1000. If we multiply a whole number by a 10, then we write one zero at the end. If we multiply a whole number by a 100, then we write two zeros at the end.

### How do you multiply a number by 10?

To multiply any number by 10, just tag ONE zero on the end. To multiply any number by 100, just tag TWO zeros on the end. To multiply any number by 1,000, just tag THREE zeros on the end. Note especially what happens when the number you multiply already ends in a zero or zeros.

**What does multiply by 10 mean?**

When you multiply by 10, move all the digits one place to the left, putting a zero in the empty space. 21 × 10 = 210. When you multiply by 100, move all the digits two places to the left, putting a zero in the empty spaces. 21 × 100 = 2100.

#### What is a reciprocal of 1?

1 itself

The reciprocal of 1 is 1 itself. The reciprocal or multiplicative inverse is the number we have to multiply to obtain an answer equivalent to the multiplicative identity 1. The reciprocal of 1 is 1.

**How do we multiply quickly by 10 or 100 mentally?**

When multiplying or dividing by 10 or 100, or any power of ten, for that matter, move the decimal point the same number of places as there are zeros in the power of ten factor.

## What is the rule for dividing by 10?

Here’s the rule for dividing by 10: move the decimal point one place to the left. Place value is the value of a digit based on its location in the number. Beginning with a decimal point and moving left, we have the ones, tens, hundreds, thousands, ten thousands, hundred thousands, and millions.

**What multiplication makes 36?**

36 = 1 × 36. 36 = 4 × 9. 36 = 6 × 6. 36 =12 × 3.

### What is a reciprocal of 14?

hence reciprocal of 14 is 1/14..

**What is the reciprocal of 5 by 3?**

5/3

Answer: The multiplicative inverse or reciprocal of 3/5 is 5/3.