Question
Bryan has 80 beads at first.
Bryan gives Adam some.
Now, Bryan has 40 beads.
How many beads does Bryan give to 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) Has at first
    (2) Has now
  4. Number of beads that Bryan gives to Adam = _____
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

(d)

Click button first when a symbol is required. X

Bryan has 80 beads at first.
Bryan gives Adam some.
Now, Bryan has 40 beads.
How many beads does Bryan give to 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) Has at first
    (2) Has now
  4. Number of beads that Bryan gives to Adam = _____