Tuesday, 10 March 2015

Cricket World Cup/Problem solving

The problem I have to solve is:
NZ won the game against Australia by 152 runs.
How many would they have to make to get to 183?

152 is what we have.
We need to change the 2 ones in 152 to a 3ones like in 183.
How many more ones do we need to add on 2 to make 3?
If I add 1 ones on 2 it will make 3ones.
Now we need to change the 5tens in 152 to 8tens like in 183.
How many more tens do we need to make the 50 into a 80?
If I add 30 to 50 it will add up to 80.
So 1 + 30  is 31.
To make 152 into 183 you will need to add 31 on 152 and that will make 183.

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