Answer:
concrete operational stage
Step-by-step explanation:
Have a look at the attached photo below, it may be your full question:
The concrete operational stage is the third phase in Piaget's cognitive development theory. This period spans the period between childhood, it begins around 7 years of age and continues until about 11 years of age and is characterized by the development of logical thinking.
-15+7=-8
Adding numbers with different signs makes it subtraction and the answer will have the sign of the bigger number
Meters is the correct answer
Answer:
Whole numbers: 56
Rational numbers: 1/3
Integer: -5
Irrational numbers: 1.17513698
Natural numbers: 0
10,500 I believe , you would round 459 to 500