Decimals and place value (AQA GCSE Maths): Flashcards

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Decimals and place value
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What is place value?

What each digit in a number is worth based on its position

Value of the tenths place

0.10.1 (first decimal place)

Value of the hundredths place

0.010.01 (second decimal place)

Value of the thousandths place

0.0010.001 (third decimal place)

Does having more digits in a decimal make it larger?

Not necessarily (e.g., 0.8>0.7580.8 > 0.758)

When comparing decimals, start with which place?

Tenths place

Effect of multiplying a decimal by 10

Decimal point moves one place right

Effect of dividing a decimal by 10

Decimal point moves one place left

Effect of adding zeros after last decimal place

Doesn't change the value (e.g., 0.4=0.4000.4 = 0.400)

Effect of multiplying a decimal by 100

Decimal point moves two places right

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