11 P4.ST.JC.18120903
Level 1
There are some children.
There are 500 boys.
The girls are 300 more than the boys.
How many children are there altogether?
2 m
W Addition & subtraction Model Comparison
12 P1.ST.JC.18120603
Level 1
Adam has 7 stickers at first.
Bryan gives him another 5 stickers.
How many stickers does Adam have in the end?

  1. Which model should we draw?
    (1) Model Part-whole
    (2) Model Comparison
  2. Is the total given?
    (1) Yes
    (2) No
  3. Who gets the shorter bar?
    (1) At first
    (2) Bryan gives him
  4. Number of stickers that Adam has in the end =
4 m
W Addition & subtraction Model Part-whole
13 P3.ST.JC.18120802
Level 1
Adam has 500 stickers at first.
Adam gives away some stickers.
He has 200 stickers left.
How many stickers does he give away?

  1. Which model should we draw?
    (1) Model Part-whole
    (2) Model Comparison
  2. Is the total given?
    (1) Yes
    (2) No
  3. Who gets the shorter bar?
    (1) At first
    (2) Left
  4. Number of stickers that he gives away =
4 m
W Addition & subtraction Model Part-whole
14 P2.ST.JC.18120701
Level 2
Adam has 30 stickers.
Bryan has 20 stickers.
How many stickers do they have altogether?

  1. Which model should we draw?
    (1) Model Part-whole
    (2) Model Comparison
  2. Is the total given?
    (1) Yes
    (2) No
  3. Who gets the shorter bar?
    (1) Adam
    (2) Bryan
  4. What is the total number of stickers?
4 m
W Addition & subtraction Model Part-whole
15 P6.ST.JC.18121302
Level 1
Find the value of 1 unit.
  1. 1 u - 5 = 10
  2. 10 = 1 u - 5
  3. 10 - 1 = 1 u - 5
  4. 10 + 1 = 1 u - 5
4 m
W Addition & subtraction Units method Units equations
16 P6.ST.JC.18121303
Level 1
Find the value of 1 unit.
  1. 3 u + 20 = 50
  2. 20 + 3 u = 50
  3. 5 u - 20 = 30
  4. 30 = 5 u - 20
4 m
W 4 operations Units method Units equations
17 P5.ST.JC.18121004
Level 2
A piece of ribbon 1200 cm long is cut into 3 parts, A, B and C.
A is 3 times as long as B.
C is 150 cm shorter than B.
  1. How much shorter is C than A?
  2. How long is A and B?
3 m
Model Comparison Model Times-as-many Units method
18 P4.ST.JC.18120904
Level 1
There are some children.
There are 500 boys.
The number of girls are 300 less than the number of boys.
How many children are there altogether?
2 m
W Addition & subtraction Model Comparison
19 P3.ST.JC.18120803
Level 1
Adam has 700 stickers.
Bryan has 200 stickers.
How many more stickers does Bryan have than Adam?

  1. Which model should we draw?
    (1) Model Part-whole
    (2) Model Comparison
  2. Is the total given?
    (1) Yes
    (2) No
  3. Who gets the shorter bar?
    (1) Adam
    (2) Bryan
  4. What is the total number of stickers?
4 m
W Addition & subtraction More than or less than Model Comparison
20 P1.ST.JC.18120604
Level 1
Adam has 7 stickers at first.
Adam gives away 3 stickers.
How many stickers does Adam have in the end?

  1. Which model should we draw?
    (1) Model Part-whole
    (2) Model Comparison
  2. Is the total given?
    (1) Yes
    (2) No
  3. Who gets the shorter bar?
    (1) At first
    (2) Adam gives away
  4. Number of stickers that Adam has in the end =
4 m
W Addition & subtraction Model Part-whole

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