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Decimal Points Races

Games involving adding and subtracting decimals
. There are two Froggy Fractions games: an individual game against the clock and a 2-player race. The Decimal Points demo is designed to be used on a whiteboard and enables the teacher to show how the game is played as well as providing an opportunity for pupils to practise adding and subtracting decimals.

Decimal Points Races

Link to Decimal Points
Two-player Decimal Points

Decimal Points instructions


A screenshot of the race game.


A screenshot of the race game

The aim is to move all the decimal points from 0 to 1. Move the points forward or backward so that the total distance travelled equals the target decimal.

Click on the 'go' button to start.

In the first example on the left three points have been moved forward. An outline is left behind to show where a point started.
The total move is 0.4 + 0.2 + 0.1 = 0.7

If the target decimal is 0.82 then one point could be moved forward 0.5, another forward 0.3 and a third forward 0.02.

If the target is 0.82 then one point could go forward 0.9, another could be moved back 0.08.
ie 0.9 - 0.08 = 0.82.

In the second example on the left, one point has been moved forward and the other moved backward. An outline is left behind to show where the points started.
The total move is 0.15 - 0.06 = 0.09

Move one or more points the required distance and then click the 'OK?' button. If your moves are correct then the next target decimal will be generated. If you are wrong then your error will be worked out, so try again.
If you don't think you can move the target distance then click the 'pass' button.

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