Decimal values are parts of whole numbers, including tenths, hundredths and thousandths. You can add and subtract decimal numbers in the same way as whole numbers using place value charts.

They add and subtract fractions with the same denominator (bottom number), multiply fractions by whole numbers and understand relationships between fractions and decimals. Understand factors ...

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How well do you understand decimal place value with 4-digit whole numbers ... and decide whether to add or subtract the random digit from your starting number. You can use a 'Wishball' to help ...

Challenge your understanding of decimal place value with 4-digit whole numbers in this ... operation (either addition or subtraction) on your starting number. Don't overshoot the target!