Math Problems for younger children
YEAR 2 ( 8- 9 years old)
The pupils oft the class 2b visited a windfarm.
Here there are 18 wind wheels.
One wind wheel is 60 meters high.
Now 8 new wind wheels are build.
How many wind wheels are there in the end?
YEAR 3/4
Peter`s family uses lots of electrical appliances in their home. In one months they have a power
consumtion of 280 kilowatt hours.
a)How many kilowatt hours are that in 3 month?
b)How much is the power consumtion in one year?
Math Problems for the ather children
Energy is valuable
The power cosumtion in our household
H`s not as easy as you could think.
Of course you can get the power from
the socket
but you have to pay for it the same way as for batteries.
To construct power stations ,
to build the electrical networt,
to run a power station to produce electricity power
and the manpower of lots of people of
course needs money.
Therefore the costumer gets an account from
the powerstation.
To measure the electrical power in our home
There is an electrical meter in each household.
Meassured is in kwh, that means kilowatt hours.
Watch your electrical meter for a time.
Always when electrical power is used in your home
The wheel with the red mark is turning round.
What`s about the wheel when there are working
only some electrical appliances in your home?
And what`s about the wheel when many of your
appliances are working?
Read daily the electricity meter at the same time fore one week.
Write down the number into the first column of the table.
Write down the daily power consumtion into the 2nd column of the table.
To calculate the consumtion of the 1st day you have to subtract the number of the 1st day from the number of the 2nd day. To calculate the consumtion of the 2nd day you have to subtract the number of the 2nd day from the number of the 3rd day, etc….
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electricity meter
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power consumtion
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1st day
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2nd day
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3rd day
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4th day
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5th day
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6th day
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7th day
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8th day
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power consumtion off all days
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How many kilowatt hours were consumed in one week?
For that purpose you have to add the numbers 2nd column.
Omwhich day there was the highes power consumtion?
Can you explane that?