There are various methods of subtraction. One method is to use a diagram showing what you start with, what you are taking away, and what you are left with. For example, the problem 5 - 3 might be described with this diagram: Another method to describe and aid in subtraction is to use a number line.
Unit Rates A rate is a ratio that is used to compare different kinds of quantities. A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc. In each case the first quantity is related to 1 unit of the second quantity. Return to Top.
VAT Rates (UK) The standard rate of VAT in the UK is 20%. This VAT rate is applicable to most goods and services. The reduced rate is 5% and there is also a zero rate of 0%. VAT registered businesses have to charge VAT on most goods and services they supply to businesses and individuals in the UK and EU. The standard rate of VAT a business has to charge is 20%.