Coins and price tags · Usually met around P1
Coins
Biggest first; $1 = 10 ten-cents.
How to do it
Method
Biggest first; $1 = 10 ten-cents
$5, $7, $9, $10
Another way
Make a round number
$2 + $2 + $1 = $5, $5 + $5 = $10
In full
Hong Kong's coins are 10¢, 20¢, 50¢, $1, $2, $5 and $10; read carefully whether a coin is cents or dollars: 50¢ is far less than $5. $1 = 10 ten-cents. To count a set of coins, start with the biggest and count on with the smaller ones: $5, then two $2 make $7, $9, then $1 makes $10. Coins of one kind can be counted in steps. Changing coins: $1 is 2 fifty-cents, 5 twenty-cents or 10 ten-cents; $10 is 2 five-dollar coins.
Worked examples
Have a go first, then open each one for the answer and the working.
Example 1
How many dollars are the coins in the picture worth?
Show the answer and working
Answer: 8 dollars
Start with the biggest and count on: $8 in all.
Example 2
How many dollars are the coins in the picture worth?
Show the answer and working
Answer: 8 dollars
Biggest first, then count on the smaller ones: $8 in all.
Example 3
How many ten-cents are the coins in the picture worth altogether?
Show the answer and working
Answer: 10 ten-cents
Count the 50¢ first, then the 20¢, then the 10¢: 10 ten-cents in all.
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