161 P6.DA.NK.21060939
Level 2 PSLE
The table shows the number of books read by each child in a class of 21 children. One of the numbers in the table is covered by an ink blot. The average number of books read by the children in the class is 6. What is the number covered by the ink blot?
2 m
Average with unknown quantity Number x value Units table
162 P5.ST.JC.18121088
Level 3
Adam has 190 stickers.
After 13 of the red stickers and
30 blue stickers are given away,
there is an equal number of red and blue stickers left.
  1. How many red stickers are there in the end?
  2. How many more blue stickers than red stickers are there at first?
  3. How many red stickers are given away?
3 m
Fraction of a set Fraction to units Equal stage after All change Units table
163 P5.ST.JC.18121089
Level 3
Adam has 190 stickers.
After 13 of the red stickers is given away and
another 30 blue stickers are bought,
there is an equal number of red and blue stickers.
  1. How many red stickers are there in the end?
  2. How many less blue stickers than red stickers are there at first?
  3. How many red stickers are given away?
3 m
Fraction of a set Fraction to units Equal stage after All change Units table
164 P5.ST.JC.18121090
Level 3
Adam has 190 stickers.
After 13 of the red stickers and
25 of the blue stickers are given away,
there is an equal number of red and blue stickers left.
  1. How many red stickers are there in the end?
  2. How many more blue stickers are there than red stickers at first?
  3. How many blue stickers are given away?
3 m
Fraction of a set Fraction to units Equal stage after All change Units table
165 P5.RD.JM.17083121
Level 3
A bag consists of a number of 20-cent and 50-cent coins. There are 85% as many 20-cent coins as 50-cent coins. How much money is there in the bag if there are 30 more 50-cent coins than 20-cent coins?
3 m
D 4 operations Percent to units Money More than or less than Number x value Units table
166 P6.RD.NK.21060205
Level 2 PSLE
At a carnival, 65% of the tickets were sold at full price and 25% of the tickets at half price. The remaining 30 tickets were given away free. The total amount of money collected was $9300. What was the full price of a ticket?
3 m
Fraction of a whole Percent of a set Money Number x value Units table
167 P5.RD.JM.17083225
Level 3
During her shopping trip, Samantha bought three different types of pens, X, Y and Z in the ratio of 4 : 2 : 5. She decided to sell them at the prices listed as shown.

Pen X: $1.20
Pen Y: $0.85
Pen Z : $0.60

Given that Samantha bought a total 451 pens, how much did Samantha collect from the sale of all the pens?
3 m
D 4 operations Ratio to units Money Number x value Units table
168 P5.ST.JC.18121091
Level 3
220 children are in a school.
14 of the boys and 15 of
the girls wear glasses.
50 children wear glasses.
  1. How many boys are there?
  2. How many girls are there?
  3. How many children do not wear glasses?
3 m
Fraction of a set Fraction to units Units table Units & parts Elimination
169 P6.RD.JO.21042213
Level 2 PSLE
Alex saved a total of $138 in coins in his coin box. 23 of all the coins saved were one-dollar coins. There were 3 times as many one-dollar coins as twenty-cent coins. The remaining coins were fifty-cent coins. How many coins did Alex save in his coin box altogether?
3 m
Fraction to units Times as many Repeated identity Combined repeated identity Number x value Decimal units Units table
170 P5.RD.JM.17083232
Level 3
At the school's annual band concert, 40% of the students were from upper primary and the rest were from lower primary. The entrance fee to the concert for each upper primary student and each lower primary student was $8 and $6 respectively. The total entrance fees collected for all the tickets was $5440. How many students were at the concert?
3 m
Percent of a set Percent to units Money Number x value Units table

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