11 P5.ST.JC.18121003
Level 2
3 children have a total of $2040.
Adam has $150 more than Bryan.
Bryan has 3 times as many as Chris.
  1. How much does Adam have?
  2. How much does Bryan have?
  3. How much does Chris have?
3 m
Model Comparison Model Times-as-many Units method
12 P2.MS.JC.18072003
Level 1
Find the following values without a calculator.
Which is more?
  1. 2 or 4
  2. 5 or 6
  3. 11 or 9
1 m
W Place values Model Comparison
13 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
14 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
15 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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