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Decimals

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A decimal is a fraction whose denominator is a power of 10.

Express as decimal

a) Express the following fraction as a decimal     ⅜

Maths Decimals 1

Express decimals as fractions

a) Express the following decimal as a fraction     0.355

Maths Decimals 2

b) Express the following decimal as a fraction     3.24

Maths Decimals 3

Recurring Decimals

An example of a recurring decimal is 0.83333 and can be represented as 0.83
a) Express the recurring decimal as fraction     0.632 (two digits recurring)

Maths Decimals 4

Decimal Places

Decimals will be rounded off to a certain degree of accuracy Example: Round off   5.936   to
(a) 1dp (b) 2dp and (c) 3dp

a) 6.0
b) 5.90
c) 5.940

Standard Form

Writing numbers to be between 1 and 10 times a power of 10.
Write the following numbers in standard form
a)589
b) 0.00488

a) 5.89 x 102
b) 4.88 x 10-3

Standard Form

Addition and Subtraction
It is basic operations as integers

0.5832 + 1.859 = 2.4422

Multiplication
Find the value of 0.254 x 2.3

Maths Decimals 5

Division
Find the value of 0.5784 divide by 0.004

Maths Decimals 6

Test Your Knowledge

Click below to generate a short, interactive 5-question quiz based on this lesson.

Decimals - PreviousIntegersNext - DecimalsSquares and Square Roots

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