501 P3.ST.JC.18120932
Level 3
Adam gets 3 stickers for every book that he reads.
He can exchange 4 stickers for a pen.
If Adam receives 6 pens,
how many books does he read?
4 m
W Multiplication & division Proportional exchange
502 P4.ST.JC.18120997
Level 3
Stickers are shared among 7 students.
If 2 of the students give up 23 of their share,
the rest of the students will get 4 more each.
  1. How many stickers are there altogether?
  2. How many stickers will each of the rest of the students get?
4 m
Redistribute
503 P6.ST.JC.18121454
Level 3
Fill in the blanks in numbers, units or unit equations.
Adam and Bryan share a sum of money in the ratio 5 : 7.
After Adam gives 23 of his money to Bryan,
Bryan has $52 more than Adam.

  1. Difference in the amount between Adam and Bryan at first = _____ u
  2. Amount that Bryan has in the end = _____ u
  3. Total amount that they have in the end = _____ u
  4. 1 u = $_____
4 m
Fraction to units Ratio to units Internal transfer Units table Units manipulation
504 P5.ST.JC.18121184
Level 3
Adam builds a toy car in 3 hours.
Bryan builds a toy car in 6 hours.
Chris builds a toy car in 5 hours.
If they work together,
how long does it take to build a toy car?
(Give the answer in fraction. Eg 1 13 h)
3 m
Fractions with units F 4 operations Rate more than 1 object
505 P4.ST.JC.18120998
Level 2
Adam gets 3 stickers for every 2 books that he reads.
He can exchange 4 stickers for 1 pen.
If Adam read 8 books,
how many pens can he exchange with the stickers?
4 m
W Multiplication & division Proportional exchange
506 P3.ST.JC.18120933
Level 3
Adam gets 3 stickers for every book that he reads.
He reads 8 books.
He can exchange stickers for a pen.
If Adam receives 6 pens,
how many stickers does he need to exchange for 1 pen?
4 m
W Multiplication & division Proportional exchange
507 P6.ST.JC.18121450
Level 3
Fill in the blanks.
Adam has thrice as many stickers as Chris.
Adam gives 10 to Bryan.
Chris receives 10 from Bryan.
In the end, Adam has twice as many stickers as Chris.

  1. Change in the number of stickers that Chris has = _____ u
  2. Difference in the number of stickers Adam and Chris have in the end = _____ u
  3. _____ u = 10
  4. 1 u = _____
4 m
Times as many Unchanged total Units table
508 P5.ST.JC.18121186
Level 3
Adam and Bryan builds a toy car in 4 hours.
Bryan and Chris builds a toy car in 6 hours.
Chris and Adam builds a toy car in 3 hours.
How long does it take for Adam, Bryan and Chris to build a toy car together?
3 m
Fractions with units F 4 operations Rate more than 1 object
509 P4.ST.JC.18120999
Level 2
Adam gets 3 stickers for every 2 books that he reads.
He can exchange 4 stickers for a pen.
If Adam receives 6 pens,
how many books does he read?
4 m
W Multiplication & division Proportional exchange
510 P3.ST.JC.18120894
Level 3
Adam has some money to buy some stickers.
If he buys 6 stickers, he will have $7 left.
If he buys 8 stickers, he will have $3 left.
  1. How much does each sticker cost?
  2. How much money does he have?
4 m
Gap & difference Double if
511 P6.ST.JC.18121422
Level 3
Fill in the blanks.
Adam receives some allowance.
If he increases his spending by 10%,
his savings decreases by 30%.

  1. Amount of spending = _____ u
  2. Amount of savings = _____ u
  3. Total amount of allowance = _____ u
  4. Difference in the amount of spending and savings = _____ u
4 m
Percent to units Percent change by Common numerator Units table
512 P4.ST.JC.18121000
Level 2
Adam get 3 stickers for every 2 books that he reads.
He reads 8 books.
He can exchange a certain number of stickers for 1 pen.
If Adam receives 6 pens,
how many stickers does he need to exchange for 1 pen?
4 m
W Multiplication & division Proportional exchange
513 P3.ST.JC.18120895
Level 3
Adam has some money to buy some stickers.
If he buys 6 stickers, he will have $7 left.
If he buys 8 stickers, he will need $3 more.
  1. How much does each sticker cost?
  2. How much money does he have?
4 m
Gap & difference Double if
514 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
515 P4.ST.JC.18121001
Level 2
Adam gets 3 stickers for every 2 books that he reads.
He can exchange 4 stickers for 5 pens.
If Adam read 8 books,
how many pens can he exchange with the stickers?
4 m
W Multiplication & division Proportional exchange
516 P3.ST.JC.18120896
Level 3
Adam has some money to buy some stickers.
If he buys 6 stickers, he will have $3 more.
If he buys 8 stickers, he will need $7 more.
  1. How much does each sticker cost?
  2. How much money does he have?
4 m
Gap & difference Double if
517 P6.ST.JC.18121455
Level 2
Fill in the blanks.
Adam is 10 years old and
Bryan is 2 years old.

  1. Difference in their age now = _____
  2. Difference in their age when Adam is thrice the age of Bryan = _____ u
  3. In how many years' time will Adam be thrice the age of Bryan?
  4. How old will Adam be when he will be thrice the age of Bryan?
4 m
Times as many Unchanged difference Units table
518 P4.ST.JC.18121002
Level 2
Adam gets 3 stickers for every 2 books that he reads.
He can exchange 4 stickers for 5 pens.
If Adam receives 15 pens,
how many books does he read?
4 m
W Multiplication & division Proportional exchange
519 P3.ST.JC.18120897
Level 3
Adam has 6 times as much money as Bryan.
After Adam has spent $60,
he has 3 times as much money as Bryan.
  1. How much money does Bryan have?
  2. How much money does Adam have in the end?
  3. How much money do they have at first?
  4. How much do they have in the end?
4 m
Times as many Unchanged quantity Model Comparison Units table
520 P6.ST.JC.18121456
Level 2
Fill in the blanks.
Adam is 50 years old and
Bryan is 40 years old.

  1. Difference in their age now = _____
  2. Difference in their age when Adam was thrice the age of Bryan = _____ u
  3. In how many years before was Adam thrice the age of Bryan?
  4. How old was Adam when he was thrice the age of Bryan?
4 m
Times as many Unchanged difference Units table

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