Grade 8 Math Checkup

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1) Half (1/2) of the marbles in a bag are red. A third (1/3) are white. The other six (6) are blue.
How many marbles are in the bag?
2) A fish tank is three-quarters (3/4) full. Two-thirds (2/3) of the water leaks out, leaving 10 litres of water in the tank.
What is the capacity of the fish tank? litres
3) On a certain map, 3 centimetres represents 25 kilometres.

How many kilometres does 1 1/2 decimetres represent? kilometres
4) A decimetre is a tenth of a metre.
At 60 metres per hour, how long will it take to travel 1800 decimetres? hours

1 decimetre = 1/10 of a metre
5) 6 1/2 % of 150 =   /
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