21 P2.ST.JC.18120702
Level 2
Adam has 50 stickers at first.
Adam gives away 20 stickers.
How many stickers are there left?

  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 left =
4 m
W Addition & subtraction Model Part-whole
22 P5.ST.JC.18121034
Level 2
Adam pays $20.40 for 1 marble and 4 stickers.
The marble costs $1.90 more than each sticker.
  1. What is the cost of 1 marble?
  2. How much is the cost of 4 marbles and 2 stickers?
2 m
D 4 operations Model Comparison Model Stacking Units method
23 P4.ST.JC.18120905
Level 1
There are some children.
There are 500 boys.
The number of boys are 300 more than the number of girls.
How many children are there altogether?
2 m
W Addition & subtraction Model Comparison
24 P3.ST.JC.18120804
Level 1
Adam has 700 stickers.
Bryan has 200 stickers.
How many more stickers does Bryan have than Adam?
How many stickers do they have altogether?

  1. Which model should we draw?
    (1) Model Part-whole
    (2) Model Comparison
  2. Who gets the shorter bar?
    (1) Adam
    (2) Bryan
  3. How many more stickers does Adam have than B?
  4. What is the total number of stickers?
4 m
W Addition & subtraction More than or less than Model Comparison
25 P1.ST.JC.18120605
Level 1
Adam has 7 stickers.
Bryan has 2 stickers.
How many more stickers does A have than B?

  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. Number of stickers that Adam has more than B =
4 m
W Addition & subtraction More than or less than Model Comparison

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