Table 2.

Answers to complex problems

Type of problems	Answers	Types of errors	Types of support
Renata and Daniel went to the market and bought the following: 2 kilos of apple, 300 grams of sugar and 1 kilo of pasta. How many grams did they buy in total?	603 6000 301 303 600	Difficulties in identifying measurement and conversion Identify the hierarchical value of the number	Explanation and writing of the decimal number system Organization of the data in the algorithm; writing of the decimal numerical system
Gaby is three times as old as her sister, Sofía. If Sofía is 7 years old, how old is Gaby?	10 4 22 20	Difficulty understanding the relationship between data Difficulties in identifying the mathematical operation Counting difficulties	Reflexive questions towards the information of the problem Explanation and division of the structure of the problem Explanation of the multiplication operation
In the children’s museum, the first room has 64 play activities and in the second there are 4 times less. How many play activities are there in the second room?	160 60 200	Difficulty in analyzing and relating the parts of the problem Difficulty finding other ways to solve the problem	Explanation and division of the structure of the problem Reflexive questions towards the structure of the problem
Axel and Daniel played three rounds of penalties. If in the first round the score was 20 to 18 goals respectively, in the second 35 to 20, and in the third 15 to 50, who won? for how many goals?	Daniel for 10 goals Daniel because he made 50 more Second won, scored 8 more	Difficulty in organizing the data Responded impulsively	Write the data in order Reflexive questions towards the structure of the problem

Note. Table 2 contains the answers of the pupils while trying to solve the complex problems.