1 P5.ST.JC.18121018
Level 3
Adam, Bryan and Chris have 48 stickers.
When Adam gives Bryan some stickers, Bryan's stickers is doubled.
When Bryan gives some stickers to Chris, Chris' stickers is doubled.
In the end, they have the same number of stickers each.
  1. How many does each child have in the end?
  2. How many stickers does Chris have at first?
  3. How many stickers does Bryan have at first?
  4. How many stickers does Adam have at first?
4 m
Times as many Equal stage after Internal transfer Working backwards Units table
2 P5.ST.JC.18121019
Level 3
4 children have some stickers.
Adam's number of stickers is tripled.
Bryan's number of stickers is quadrupled.
Chris' number of stickers is doubled.
David's number of stickers is halved.
In the end, all have 60 stickers each.
  1. How many stickers does Adam have at first?
  2. How many stickers does Bryan have at first?
  3. How many stickers does Chris have at first?
  4. How many stickers does David have at first?
4 m
Fraction of a set Times as many Equal stage after All change Working backwards Units table
3 P5.ST.JC.18121020
Level 3
4 children have the same number of stickers at first.
Adam's number of stickers is tripled.
Bryan's number of stickers is quadrupled.
Chris' number of stickers is doubled.
David's number of stickers is halved.
In the end, they have 950 stickers.
  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 Chris have in the end?
  4. How many stickers does David have in the end?
4 m
Fraction of a set Times as many Equal stage before All change Working backwards Units table
4 P5.AN.JM.17083112
Level 1
The figure shows an 8-point compass. After turning 225° clockwise, Janelle was facing Northeast (NE). Which direction was she facing at first? Give the answer in letter. (Eg N)
1 m
Compass Working backwards
5 P5.AN.JM.17083106
Level 1
If Robert makes a 135° anti-clockwise turn, he will face South West. Where will Robert face is he makes a 270° clockwise turn from his original position? Give the answer in letter. (Eg N)
1 m
Compass Working backwards
6 P5.AN.JM.17083109
Level 2
Kelicia was facing Northeast after making an anti-clockwise 225° tum. At which direction was she facing at first? Give the answer in letter. (Eg N)
2 m
Compass Working backwards
7 P5.ST.JC.18121061
Level 3
Some children board a school bus.
At Bus Stop A, 25 of them alight
and 6 children board.
At Bus Stop B, 13 of the children alight
and 4 board.
If there are 20 children on the bus now,
how many children are on the bus at first?
3 m
Fraction of a set Fraction to units Remainder concept Working backwards Units & parts
8 P6.ST.JC.18121466
Level 3
Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).

Adam, Bryan and Chris have some stickers.
After Adam's number of stickers is doubled,
Bryan's number of stickers is increased by 10 and
Chris' number of stickers is reduced by 8,
the ratio of the number of stickers of Adam to Bryan to Chris becomes 4 : 2 : 1.

Let the number of stickers that Chris has in the end be 1 u.
  1. Number of stickers that Adam has at first = _____
  2. Number of stickers that Bryan has at first = _____
  3. Number of stickers that Chris has at first = _____
  4. Total number of stickers that they have at first = _____
4 m
Ratio to units All change Working backwards Units table
9 P5.ST.JC.18121073
Level 3
Adam has some stickers.
On Day 1, he gives away 37 of the stickers.
On Day 2, he gives away 28 of the stickers.
On Day 3, he gives away 25 of the remaining stickers.
Now, he has 36 stickers left.
How many stickers does he have at first?
3 m
Fraction of a set F Addition & subtraction Remainder concept Working backwards Units method
10 P5.ST.JC.18121074
Level 3
Adam has some stickers.
On Day 1, he gives away 27 of the stickers.
On Day 2, he gives away 25 of the remaining stickers.
On Day 3, he gives away 27 of the stickers.
Now, he has 36 stickers left.
How many stickers does he have at first?
3 m
Fraction of a set F Addition & subtraction Remainder concept Working backwards Units method
11 P5.ST.JC.18121075
Level 3
Adam has some stickers
He gives away 13 and an additional 15 stickers to Bryan.
He gives away 49 of the remainder and 10 more stickers to Chris
and 35 of the rest to David.
Adam has 30 stickers left.
How many stickers does he have at first?
3 m
Fraction of a set F Addition & subtraction Remainder concept Working backwards Units method
12 P5.ST.JC.18121076
Level 3
Adam has some stickers
He gives away 13 and an additional 15 stickers away to Bryan.
He gives away 49 of the remainder less 10 stickers to Chris
and 35 of the rest to David.
Adam has 30 stickers left.
How many stickers does he have at first?
3 m
Fraction of a set F Addition & subtraction Remainder concept Working backwards Units method
13 P4.DE.JM.171010111
Level 2
B is a number. Multiply B by 5, then add 6.23 to the product, the answer is 30.08. What number is B?
2 m
D 4 operations Working backwards
14 P4.ST.JC.18121035
Level 2
Some children board a school bus.
At Bus Stop A, 25 of them alight
and 8 children board.
If there are 26 children in the bus now,
how many children are on the bus at first?
3 m
Fraction of a set Fraction to units Working backwards Units method
15 P4.RD.NK.22120716
Level 3
Ben bought some pastries. He bought some cupcakes with $9.20 more than half his money. He then bought some puffs with $7.20 less than half of his remaining money. He then had $12.80 left. How much did he pay for the cupcakes?
4 m
Fraction to units D 4 operations Money Remainder concept Working backwards Units & parts Substitution
16 P4.AN.JM.17092817
Level 2
Thomas made a half turn in an anti-clockwise direction. Then he made a quarter turn in the clockwise direction. He is now facing the playground. Is he facing Block 345 at first? Give your answer as Yes = Y and No = N.
2 m
Compass Working backwards
17 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
18 P6.RA.TL.16010164
Level 3
Rachel had 2060 mℓ more orange juice than Yvonne. After Rachel gave Yvonne 550 mℓ of orange juice, the ratio of Rachel's orange juice to Yvonne's orange juice became 5 : 2. How much orange juice did Rachel have at first? Give your answer in millilitres.
4 m
Ratio to units More than or less than Working backwards Model & units table Units & parts
19 P5.WN.JM.17082935
Level 2
Z is a whole number. Multiply Z by 40 and add 1000 to the result, the answer is 12 680. What number is Z?
2 m
Working backwards
20 P5.WN.NK.22122008
Level 2
Zandro used a calculator to divide a 4-digit number by a 1-digit number. For the 1-digit number, he made a mistake by pressing 6 instead of 5. He obtained the incorrect answer of 560. What should be the correct answer?
2 m
W Multiplication & division Working backwards

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