Square Numbers and Roman numerals

All About Square Numbers

100

What happens when you add a row or column to a square array?

You would no longer have a square array or it will become a rectangular array.

200

When do square numbers occur?

When a number is multiplied by itself.

300

Is there a pattern in square numbers? If so, what is it?

Yes, the pattern is that square numbers alternate between odd and even numbers.

400

What is another way to say 6 x 6 = 36?

six squared is equal to 36 or 6² =36

500

What shape does square numbers make and why?

(double points)

A square because it has the same number of rows and columns.

What is the product?

100

10²

100

200

4²

16

300

9²

81

400

12²

144

500

13²

169

Squares and Square Roots

100

What mathematical operation will "undo" or is the opposite of finding the square of a number?

square root, or finding the square root

200

The following sign is used when finding the square root of a number (√) What is the name of this sign?

radical or radical sign

300

Solve the following expression: 24²

576

400

What is the square root of 144, also written as √144?

12

500

√81 + √144

9 + 12 = 21

Roman Numberals

100

In Roman numerals, what number does the letter L represent?

50

200

Roman numerals are very different from the numbers that we use. They are numbers written using a combination of letters. How many letters from our alphabet are used in the Roman Numeral system?

7

300

In Roman numerals, what number does the letter M represent?

1,000

400

How would you read the following roman numeral using our number system: XXXIX?

39

500

How would you read the following roman numeral using our number system: MMLXVII?

2,067