Theme 4.  Problems to find the unknown addend

In the theme you learn:
• You will learn how to find the unknown addend and practice finding it;
• You will learn to solve problems to find the unknown addend and practice choosing the right solutions for problems;
• You will improve your skills in adding and subtracting numbers up to 10;
• You will practice comparing an expression and a number;
• You will repeat the composition of numbers 6, 8, 9, 10.