You can read posting **Sarin and his coin bank** on the story of coin bank.

Read also postings on **Sarin and the million numbers** to understand concept of dollars and cents.

Lower primary school mathematics question LPQ16

Sarin had a five dollar note, 4 fifty-cent coins and some twenty-cent coins. If he had $9.60 altogether, how many twenty-cent coins did he has?

Solution:

2 fifty-cent coins = $1.00

4 fifty-cent coins = 2 × $1.00 = $2.00

Value of twenty-cent coins Sarin had = $9.60 – $5.00 – $2.00 = $2.60

5 twenty-cent coins = $1.00

10 twenty-cent coins = $2.00

3 twenty-cent coins = $0.60

She had 10 + 3 = 13 twenty-cent coins.

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