Question
There are 5 red marbles and 2 green marbles in each group.
There is a total of 12 green marbles.
  1. How many red marbles are there?
  2. How many marbles are there altogether?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

There are 5 red marbles and 2 green marbles in each group.
There is a total of 12 green marbles.
  1. How many red marbles are there?
  2. How many marbles are there altogether?