reading

The word "zero" refers to _______.

The Roman numeral "X" stands for _____.

• 5

• 10

• 20

• 30

What point does the writer emphasize in the first paragraph?

• It is easier to use Arabic numerals than to use Roman numerals

• How useful Roman numerals are.

• The importance of zero.

• Using Roman numerals is not a straightforward task.

"Zero" is the ________ between the negative and positive numbers.

At the beginning of the tennis game, the referee calls out ______.

• zero-zero

• egg-egg

• love-love

• zero all