11 P5.ST.JC.18121163
Level 3
If Adam's income decreases 10% from $330 and then increases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method
12 P5.PC.JC.17083122
Level 3
Jane's savings is 20% more than Darwin's savings. If Jane's savings is decreased by 20%, their total savings will be $980. How much is Jane's savings?
3 m
Percent change by Percent of different bases Money More than or less than Unchanged quantity Units table Decimal units
13 P5.PC.JC.17083141
Level 3
There was an equal number of tables and chairs in the morning. At noon, some tables were added and some chairs were removed, resulting in the number of tables being increased by 20% while the number of chairs decreased by 30%. At 7 p.m. the number of tables increased by 50%. If a total of 32 tables were added during the day, how many more tables than chairs were there in the end?
4 m
Percent change by Percent of different bases Equal stage before Unchanged quantity All change Units table Decimal units
14 P5.PC.JM.17083193
Level 3
Wilfred saves 10% of his allowance. When his allowance was increased by 20%, his savings rose proportionately to $180. What was his original allowance?
4 m
Percent of a whole Percent change by Money Units method
15 P5.PC.JC.17092204
Level 3
Wilfred saves 10% of his allowance. When his allowance was decreased by 20%, his savings decreased proportionately to $80. What was his original allowance?
4 m
Percent of a whole Percent change by Money Units method

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