Calculator 3. - Thinking tasks

Volume 2, Calculator, introduces children to the 100 number range. They can learn the local value, correct description and concept of two-digit numbers. Even in this number range, even and odd numbers are safely sorted. The shuffled numbers are already sorted according to the appropriate instruction. They perform arithmetic sequences based on the recognition of the rule. They learn the four basic operations (addition, subtraction, multiplication, division) and can deepen the geometric concepts they have learned so far. This volume is recommended for second-graders who are interested in doing math in addition to the textbook material.