The counting game - Decimals

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In pairs, players throw and catch the ball while counting backwards aiming to be the player who says zero.

Select a starting number, eg. 1
Then select a decimal unit value, eg. tenths.
The goal is to be the player who says zero.
Players throw the ball into the air and catch it themselves each time they say a number. They then throw it to their partner to continue counting.
Players can count back by saying the next 1, 2 or 3 number words in the tens sequence while throwing the ball into the air to catch themselves.
Players collect a counter (or a tally mark) if they say zero.
A new target number is chosen and players play again.
For example:

Target number 0 (starting at 1 and counting in tenths)

Player A: 1...(throw ball up once and then throw to Player B)

Player B: 0.9, 0.8...(throw ball up twice and throw back to Player A)

Player A: 0.7...

Player B: 0.6...

Player A: 0.5, 0.4...

Player B: 0.3, 0.2, 0.1...

Player A: zero!

Move apart and introduce new passes or positions (e.g. rolling along ground, bounce pass).
Play with whole numbers up to 6 digits.
Students choose the counting sequence and starting number.
Count forwards.
Swap partners at the completion of each counting sequence.
Vary the ball type and size used.

Representing whole numbers