26 P2.ST.JC.18120703
Level 2
Adam has 70 stickers at first.
Bryan gives him another 50 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
27 P6.ST.JC.18121304
Level 1
Find the value of 1 unit.
  1. 5 u - 20 = 10
  2. 5 u - 20 = 1 u
  3. 10 = 5 u - 20
  4. 1 u = 5 u - 20
4 m
W 4 operations Units method Units equations
28 P5.ST.JC.18121002
Level 2
Adam spends $15.70 on 2 stickers and 3 marbles.
A sticker costs $1.10 more than 1 marble.
  1. How much does 1 sticker cost?
  2. How much do 4 stickers cost?
  3. How much do a marble and 4 stickers cost?
  4. How much do 4 stickers cost more than 1 marble?
4 m
D 4 operations Model Stacking Units method
29 P4.ST.JC.18120906
Level 1
There are some children.
There are 500 boys.
The number of boys are 300 less than the number of girls.
How many children are there altogether?
2 m
W Addition & subtraction Model Comparison
30 P3.ST.JC.18120805
Level 1
Adam has 800 stickers.
Bryan has 200 stickers.
How many less 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

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