Reading Writing - WEEK 12

Front

Shape with 8 equal sides?

Back

Octagon

Front

2 letters meaning 1,000?

Back

K and M

Front

In what century did mathematicians first use + and - signs?

Back

the 16th century

Front

al-Khwarizmi gave this number to the West:

Back

zero

Front

What does "giga" represent?

Back

one billion

Front

50 in Roman numerals?

Back

L

Front

Greek mathematician who identified the morning and evening star as the same:

Back

Pythagoras

Front

Number with 100 zeros first used by a 9-year-old in 1938.

Back

googol