1 P6.PC.NK.21060207
Level 3 PSLE
Ronnie had blue pens and red pens for sale. He sold 240 blue pens. 25% of the pens sold were red.
  1. How many blue pens and red pens did Ronnie sell altogether?
  2. He sold 40% of his pens. 70% of the pens left unsold were blue. How many red pens did Ronnie have at first?
4 m
Percent to units Percent of different bases All change Units table
2 P6.PC.NK.21060206
Level 3 PSLE
A bookshop is having a book sale. The 1st book is at 10% discount. The 2nd book is at 20% discount. The price of the 2nd book should be equal or lower than the price of the 1st book.
  1. Kimmy's books were priced at $10 and $12. How much did she pay for them? 2 m
  2. Henry paid a total of $24.80 for his two books. He paid $4 more for the 1st book than for the 2nd book. What was the price of the 2nd book before discount? 3 m
5 m
Percent of a whole Discount Percent of different bases Money D 4 operations More than or less than Units table
3 P6.PC.NK.21060208
Level 3 PSLE
Linda saved $240 in February. This amount was a 20% increase from what she saved in January. The amount she saved in March was a 30% decrease from what she saved in February.
  1. What was the total amount that Linda saved from January to March?
  2. What was the percentage increase in the amount Linda saved in March compared to January?
5 m
Percent to units Percent change by Percent of different bases Decimal units Units table
4 P5.ST.JC.18121047
Level 3
Some stickers are packed into exactly packets of 10.
If the stickers are repacked into packets of 7,
there are 3 more packets.
  1. How many packets of 7 are there?
  2. How many stickers are there?
3 m
Redistribute Number x value Units equations Units table
5 P5.ST.JC.18121048
Level 3
Some stickers are packed into exactly packets of 7.
If the stickers are repacked into packets of 10,
there are 3 less packets.
  1. How many packets are there?
  2. How many stickers are there?
3 m
Redistribute Number x value Units equations Units table
6 P5.ST.JC.18121049
Level 3
Some stickers are packed into exactly packets of 10.
If the stickers are repacked into packets of 7,
there are 4 more packets and 2 stickers left.
  1. How many packets are there?
  2. How many stickers are there?
3 m
Redistribute Number x value Units equations Units table
7 P6.ST.JC.18121374
Level 1
Fill in the blanks.
The number of boys is 4 times as many as the number of girls.
The number of adults is twice the number of boys.
Let the number of girls be 1 u.

  1. Number of boys = _____ u
  2. Number of adults = _____ u
  3. Total number of people = _____ u
3 m
W 4 operations Times as many Repeated identity Units table
8 P5.ST.JC.18121050
Level 3
Some stickers are packed into exactly packets of 7.
If the stickers are repacked into packets of 10,
there are 4 less packets and 2 stickers extra.
  1. How many packets are there?
  2. How many stickers are there?
3 m
Redistribute Number x value Units equations Units table
9 P6.ST.JC.18121375
Level 2
Fill in the blanks.
The number of boys is 4 times as many as the number of girls.
The number of adults is twice the number of children.
Let the number of girls be 1 u.

  1. Number of boys = _____ u
  2. Number of adults = _____ u
  3. Total number of people = _____ u
3 m
W 4 operations Times as many Combined repeated identity Units table
10 P5.ST.JC.18121051
Level 3
Some stickers are packed into exactly packets of 7.
If the stickers are repacked into packets of 10,
there are 4 less packets and needs 6 more stickers to make another packet.
  1. How many packets are there?
  2. How many stickers are there?
3 m
Redistribute Number x value Units equations Units table
11 P5.ST.JC.18121011
Level 2
There are 3 times as many dogs as birds.
There are 210 legs altogether.
  1. Find the number of animals.
  2. Find the number of less dogs than birds.
  3. Find the number of more dogs' legs than birds' legs.
3 m
Number x value Units table
12 P5.ST.JC.18121012
Level 2
Adam has $800 in $5-notes and $10-notes.
There are 3 times as many $5-notes as $10-notes.
  1. How many notes are there?
  2. How much is the value of all the $10-notes?
3 m
Money Number x value Units table
13 P5.ST.JC.18121014
Level 1
Adam and Bryan have a total of 1000 stickers.
Adam gives Bryan 100 stickers.
Now, they have the same number of stickers.
  1. How many stickers does Adam have at first?
  2. How many stickers does each have in the end?
3 m
Equal stage after Internal transfer Unchanged total Units table
14 P5.ST.JC.18121015
Level 2
Adam and Bryan have a total of 1000 stickers.
Adam gives Bryan 100 stickers.
Now, Adam has 200 more than Bryan.
  1. How many stickers does Adam have at first?
  2. How many stickers does Bryan have in the end?
3 m
More than or less than Internal transfer Unchanged total Units table
15 P5.ST.JC.18121016
Level 2
Adam has 800 stickers.
Bryan has 200 stickers.
Bryan receives some stickers from Adam.
Now, Adam has 100 more stickers than Bryan.
  1. How many stickers does Adam have in the end?
  2. How many stickers does Bryan have in the end?
  3. How many stickers does Adam give to Bryan?
3 m
More than or less than Internal transfer Unchanged total Units table
16 P5.ST.JC.18121017
Level 3
Adam has 300 stickers more than Bryan.
Adam gives Bryan 20 stickers.
Now, Adam has 3 times as many stickers as Bryan.
  1. How many stickers does Adam have in the end?
  2. How many stickers does Bryan have in the end?
3 m
More than or less than Times as many Internal transfer Units table
17 P5.ST.JC.18121021
Level 2
Adam is 25 years old.
Bryan is 5 years old.
In a few years' time, Adam will be 3 times as old as Bryan.
  1. In how many years' time will Adam be 3 times as old as Bryan?
  2. How old will Adam be by that time?
3 m
Times as many Unchanged difference Units table
18 P5.ST.JC.18121022
Level 2
Adam is 35 years old.
Bryan is 15 years old.
A few years ago, Adam was 3 times as old as Bryan.
  1. How many years ago was Adam 3 times as old as Bryan?
  2. How old was Adam then?
3 m
Times as many Unchanged difference Units table
19 P6.PC.JC.22031501
Level 2 PSLE
A box contained black balls and green balls. 40% of the balls were green. After some red balls were added to the box, 28% of the balls were green. What percentage of the balls in the box were red?
2 m
Percent of a set Percent to units Percent of different base Unchanged quantity Units table Units & parts Substitution
20 P5.ST.JC.18121023
Level 2
Adam has 90 red stickers.
He has 3 times as many red stickers as blue stickers.
After he buys an equal number of red and blue stickers, the number of red stickers is 2 times that of the blue stickers.
  1. How many red stickers are there in the end?
  2. How many blue stickers are there in the end?
  3. How many stickers are there in the end?
  4. How many stickers does Adam buy?
4 m
Times as many Unchanged difference Units table

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