Numbers and Operations Group Activities

Numbers
and Operations

Use groups of 2.

Lands of Confusion

Read the following passage.

You probably know that there are differences between British English and American English. For example, in British English the word boot can be used to describe footwear or an automobile trunk. As the table below shows, the differences extend to numbers as well.

	Number of Zeroes
Number Quadrillion Quintillion Sextillion Septillion Octillion Nonillion Decillion Undecillion Duodecillion Tredecillion Quattuordecillion Quindecillion Sexdecillion Septendecillion	British English 24 30 36 42 48 54 60 66 72 78 84 90 96 102	American English 15 18 21 24 27 30 33 36 39 42 45 48 51 54

Decide which partner will use British English and which will use American English. Write each number below in standard form. Then write the number in word form. Compare your results.

1.25 × 10²⁶

4.7 × 10³¹

8 × 10³⁶

2.06 × 10⁴⁴

1.4 × 10⁴⁹

6 × 10⁵⁴