Christmas Break Math Review

Conversions

100

This is the number of years in 5 centuries

What is 500?

200

This is how many yards are in 21 ft.

What is 7 yards?

300

This is how many pecks are in 24 bushels.

What is 96?

400

This is how many days are in 3 years.

What is 1095 days?

500

This is how many minutes are in 5 hours

What is 300 minutes?

Rounding

100

$13.0975 rounded to the nearest cent.

What is $13.10

200

3.07 rounded to the nearest tenth.

What is 3.1?

300

915,267 Founded to the nearest hundred

What is 915,300?

400

994,835 rounded to the nearest ten thousand. 

What is 990,000?

500

3,296,413,784 Rounded to the nearest ten million

What is 3,300,000,000?

Roman Numerals

100

When a dash is placed over one or more Roman Numerals, the value is increased by this amount.

What is 1,000 times.

200

64 as a roman numeral

What is LXIV?

300

MCCLVI as an Arabic numeral

What is 1,256

400

985 = CMLXXV

What is false?

500

CCCLXXXII is the Roman Numeral for this number.

What is 382?

Prime Factoring

100

This is the greatest common factor of 9 and 15

What is 3?

200

This number is neither prime nor composite

What is 1?

300

This number is both even and prime

What is 2?

400

These are the prime factors of 68

What are 2 x 2 x 17 or 2² and 17

500

These are the prime factors of 81

What are 3 x 3 x 3 x 3  or 3⁴

Modes of Operations

100

The estimate sum of these numbers when rounded to the nearest hundred 275 + 604 =

What is 900?

200

This is the answer to 4,000 - 1,969 =

What is 2,031?

300

472 x 58 =

What is 27,376

400

6,596 divided by 17

What is 388?

500

45.097 - 7.895 =

What is 37.202?