Angry Book: Math The first book for kid
Which the title is Angry Birds
Index • 1. Numbers • 2. Shapes • 2.2. Circles
1. Numbers • Hello! I am the Red Bird. I’ll tell you about amazing NUMBERS. • Numbers are used for write down a value. • We use some number systems.
These are SHAPES.
2.2. Circles • Circle is a simple shape. • The longest line in a circle called diameter. • When we want to know the area of the circle, the formula is: The quotient of diameter divided 2 squared times 3.14.