Page 60 - NUMINO Challenge_M2
P. 60
Problem solving
1 In a water tank, a solid board was placed in the Key Point
middle, and water was poured into the two sides. The amount of water
that goes down on
If the board is taken out, what would the height the left side is the
same amount that
of the water be in cm? goes up on the right
side.
20 cm
10 cm
2 After Marina gave Peter the same amount of Peter ends up with
money that he had, they both had a total of 20 twice the amount of
cents each. How much did Marina originally money he originally
have? had.
57Problem Solving
1 In a water tank, a solid board was placed in the Key Point
middle, and water was poured into the two sides. The amount of water
that goes down on
If the board is taken out, what would the height the left side is the
same amount that
of the water be in cm? goes up on the right
side.
20 cm
10 cm
2 After Marina gave Peter the same amount of Peter ends up with
money that he had, they both had a total of 20 twice the amount of
cents each. How much did Marina originally money he originally
have? had.
57Problem Solving

