11 P5.ST.JC.18121093
Level 3
Adam has some paint.
He uses 58 of it to paint 4 chairs and 3 doors.
The amount of paint needed to paint a door is 2 times that of a chair.
  1. How many chairs can he paint using the remaining paint?
  2. How many doors can he paint using the remaining paint?
3 m
Fraction of a whole F Addition & subtraction Fraction to units Times as many Units method Units & parts Substitution
12 P5.RA.NK.23021713
Level 2
There are 264 passengers on board a ship. The ratio of children and adults is 4 : 9. There are 18 more men than women. How many men are there on the ship?
3 m
Ratio to units More than or less than Combined repeated identity Units table Units & parts Substitution
13 P5.ST.JC.18121121
Level 3
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam buys another 10 blue stickers and 20 red stickers,
the ratio becomes of the number of blue stickers to red stickers is 7 : 6.
How many stickers does Adam have now?
3 m
Ratio to units All change Units table Units & parts Elimination
14 P5.ST.JC.18121122
Level 3
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam gives away 10 blue stickers and gives away 20 red stickers,
the ratio becomes of the number of blue stickers to red stickers is 9 : 2.
How many stickers does Adam have now?
3 m
Ratio to units All change Units table Units & parts Elimination
15 P5.ST.JC.18121123
Level 3
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam buys another 20 red stickers and gives away 10 blue stickers,
the ratio becomes of the number of blue stickers to red stickers is 3 : 2.
How many stickers does Adam have now?
3 m
Ratio to units All change Units table Units & parts Elimination
16 P5.ST.JC.18121052
Level 3
A coin bank contains some twenty-cent and fifty-cent coins in the ratio of 2 : 5.
When 10 fifty-cent coins are taken out and
exchanged with some twenty-cent coins of the same value,
the ratio became 8 : 9.
Find the sum of money in the coin box in dollars.
3 m
Ratio to units Proportional exchange Units table Units & parts Elimination
17 P5.ST.JC.18121142
Level 2
Adam has 200 red stickers, blue stickers and green stickers.
40% of the stickers are blue.
There are 10 more red stickers than green stickers.
  1. How many green stickers are there?
  2. How many less red stickers than blue stickers?
2 m
Percent of a set Percent to units More than or less than Units & parts
18 P5.ST.JC.18121143
Level 3
Adam has 200 red stickers, blue stickers, yellow stickers and green stickers.
20% of the stickers are red.
40% of the stickers are blue.
The rest are yellow and green stickers.
There are 10 more yellow stickers than green stickers.
  1. How many green stickers are there?
  2. How many less red stickers than blue stickers?
2 m
Percent of a set Percent to units More than or less than Units & parts
19 P5.RD.NK.23021727
Level
In a stationery kiosk, a box of markers costs thrice as much as a guidebook. Mrs Yong spent 14 of her money to buy 2 boxes of markers. She then spent 47 of her remaining money to buy some guidebooks and had $21.60 left. How much does each guidebook cost?
4 m
F Addition & subtraction Fraction to units Money Times as many Remainder concept Working backwards Units & parts Substitution
20 P5.ST.JC.18121168
Level 3
Adam has some blue stickers and red stickers.
If Adam receives another 60 blue stickers,
the blue stickers will be 80% as many as the red stickers.
If Adam receives another 300 red stickers,
the blue stickers will be 20% as many as the red stickers.
  1. How many blue stickers are there?
  2. How many red stickers are there?
4 m
Percent to units Unchanged quantity Double if Units table Units & parts Substitution

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