Rational Numbers Operations

Add

100

True or false:

When adding fractions, you must have a common denominator.

TRUE

200

9/14 + 3/7 

15/14 or 1 1/14

300

7/8 + -1/2 

3/8

400

79.3 + 10.21

89.51

500

-6.25 + 3.9

-2.35

Subtract

100

True or False?

When subtracting rational numbers, what is the three-letter trick we use to rewrite the problem?

LCO

(leave, change,opposite)

200

-11/12

-11/12

300

3/4

3/4

400

-11.52 - 6.3

-17.82

500

-29.4 - (-7.21)

-22.19

Multiply

100

True or False:

When multiplying fractions, you need a common denominator?

FALSE

200

5/6 x 1/4

5/24

300

-9/10 x 3/4 

-27/40

400

0.3 x (-4.8)

-1.44

500

-8.3 x 4

-33.2

Divide

100

What is the three-letter trick we use for DIVIDING fractions?

Hint: chicken

KCF

200

1/6 div 1/2 

1/3

300

2 1/2 div 2 2/3 

15/16

400

38.4 div -12

-3.2

500

-3.4 div -0.2

17

TRIVIA

100

What country's population consumes the most chocolate per capita?

Switzerland

200

What color M&M was discontinued and replaced with blue in 1995?

Tan (light brown)

300

What country gave the Statue of Liberty to the United States as a gift?

France

400

What is the official animal of Scotland?

Unicorn

500

What animal's milk is pink?

Hippopotamus