81 P5.DA.NK.23052622
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Level 2
A group of 50 girls and 20 boys took part in a Mathematics test. The average score of the girls was 50 points. While the average score of the boys was 64 points. What was the average score of all the students who participated in the test?
2 m
Attempt
Averaging out 2 averages Number x value Units table
82 P5.DA.NK.23052621
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Level 2
The average height of 3 children was 1.32 m. One of the children, whose height was 1.3 m, left the group. What was the average height of the remaining children?
2 m
Attempt
Averaging out 2 Averages Length Number x value Units table
83 P5.RD.JM.17083228
Level 3
A fruit vendor ordered some fruits. 35% of the fruits he ordered were apples and the rest were oranges. Each apple cost $1.20 and each orange cost 50% more than each apple. The vendor paid a total of $636.
  1. Find the total cost of the apples.
  2. How many oranges did he order?
3 m
Percent of a set Percent to units Money More than or less than Number x value Units table Decimal units
84 P5.DA.JM.17083180
Level 2
A group of 5 pupils scores an average of 83 marks in a test. When a new pupil joins the group, their average score decreases to 79 marks. How many marks does the new pupil score?
2 m
Averaging out 2 averages Number x value Units table
85 P5.DA.JM.17083142
Level 2
The average height of six students is 125 cm. If the average height of five students is 120 cm, find the height of the sixth pupil.
2 m
Averaging out 2 Averages Length Number x value Units table
86 P5.RD.JM.17083260
Level 3
Jolene and Katie shared some necklaces. Jolene's share was 45% of Katie's share. She then increased her share of the necklaces by taking 20% of Katie's share. Given that Jolene had 18 fewer necklaces than Katie in the end, how many necklaces did the girls have altogether?
3 m
F Multiplication Percent of a set Percent to units More than or less than Internal transfer Units table
87 P5.RD.JM.17083126
Level 3
At first, Beaker A and Beaker B contained 0.6 ℓ and 1.6 ℓ of water respectively. Some water from Beaker B was poured into Beaker A with no water spilling over. In the end, there was as much water in Beaker A as in Beaker B. How much water was poured from Beaker B to Beaker A?
3 m
D 4 operations Volume Equal stage after Internal transfer Unchanged total Units table
88 P5.DA.JM.17083160
Level 3
The table shows the marks Michelle scored in her end of year examinations. Michelle scored an average of 75 marks for the 4 subjects. What is the greatest possible mark that she could have scored for Science?
2 m
Table Average with min-max
89 P5.ST.JC.18121098
Level 2
The ratio of Adam's money to Bryan's money is 4 : 3.
The ratio of Bryan's money to Chris' money is 2 : 1.
The total amount that they have is $510.
How much more money does Adam have than Chris?
3 m
Ratio to units Repeated identity Units table
90 P5.RD.PR.17083249
Level 3
The figure is made up of 2 squares of different sizes. The area of the small square is 50% of the area of the big square. The overlapped shaded area is 20 cm2. The area of the unshaded small square is 25 the area of the unshaded big square. Find the area of the small square.
3 m
Fraction to units Finding ratio Area Perimeter Square Overlapping area Unchanged difference Units table
91 P5.ST.JC.18121099
Level 3
In a school, the ratio of adults to the number of children is 12 : 7.
The ratio of the number of boys to the number of girls is 3 : 2.
There are 70 more boys than girls.
How many people are there in the school?
3 m
Ratio to units Combined repeated identity Units table
92 P5.DA.NK.23012616
Level 3
The table shows Fabian scores in 3 of the 4 games that he played.
Fabian will get a prize if his average score for three of the four games is 25 or more. What is the lowest score Fabian must score in the 4th game in order to get a prize?
2 m
Table Average with min-max
93 P5.ST.JC.18121100
Level 3
Adam receives his allowance of $250.
The ratio of Adam's spending to Adam's saving is 2 : 3.
The ratio of Adam's spending on food to the remaining of other expenses is 1 : 4.
  1. How much does Adam save?
  2. How much less does Adam spend on food than other expenses?
3 m
Ratio to units Combined repeated identity Remainder concept Units table
94 P5.DA.NK.23052618
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Level 3
The table shows the marks that Andy scored in his Science, English and Chinese tests. Part of the table is covered by an ink blot. The full marks for each test was 100. The average score for his three tests was 76 marks. Find the highest possible marks that Andy scored in his Science test.
2 m
Attempt
Table Average with min-max
95 P5.DE.NK.22122322
Level 2
Seth paid $24 for an equal number of shirts and vests. Each vest cost $4.50. Each shirt cost $3 more than each vest. How many shirts did she buy?
2 m
D 4 operations Money Unit conversion More than or less than Equal stage Number x value Units table
96 P5.ST.JC.18121101
Level 3
Adam receives his allowance of $250.
The ratio of Adam's spending to Adam's saving is 2 : 3.
The ratio of Adam's spending on food to the remaining expenses is 1 : 4.
  1. What fraction of his allowance is spent on food?
  2. What fraction of his allowance is spent on the remaining expenses?
  3. How much did he spend on food?
3 m
F Multiplication Combined repeated identity Remainder concept Branching Units table
97 P5.DE.NK.23021733
Level 2
Brandon spent $74 on a table tennis bat and 6 ping pong balls. The table tennis bat cost $39.70 more than each ping pong ball. How much did he pay for the table tennis bat?
2 m
D 4 operations Money More than or less than Number x value Units table
98 P5.RD.JM.17083147
Level 3
Renee had $420 less than Tom. Tom spent 0.6 of his money and Renee spent 0.5 of her money. In the end, Tom and Renee had the same amount of money left. Find the amount of money Renee had at first.
3 m
Decimal to units Money More than or less than Equal stage after Common numerator All change Units table
99 P5.ST.JC.18121102
Level 2
The ratio of the number of girls to the number of boys is 3 : 5.
Each girl is given 4 stickers.
Each boy is given 2 stickers.
The total number of stickers is 220.
  1. How many children are there?
  2. How many more boys than girls are there?
  3. How many more stickers are given to the girls than the boys?
3 m
Ratio to units Number x value Units table
100 P5.DE.NK.22122321
Level 2
Betty paid $9 for 3 macarons and 5 pies. A pie cost thrice as much as a macaron.
  1. Find the cost of a macaron in cents.
  2. How much more did she pay for a pie than a macaron?
2 m
D 4 operations Money Unit conversion More than or less than Times as many Number x value Units table

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