Object: A calculator

Good morning, boys and girls. How many of you know how to add? Subtract? Multiply? Divide? It is wonderful to learn new things, isn't? For simple numbers, some of us may have started out using our fingers. 1-2-3-4, etc. After we reach 10 though we would be in trouble, wouldn't we? Of course we could take off our shoes and socks and count on our toes. Later we learn to add figures on paper and to know without using our fingers that 2 + 2 = 4. When we…