JEOPARDY: Rational Computations

The Terminator...or repeator

100

State whether the decimal is terminating or repeating. 4.5632

Terminating

200

State whether the decimal is terminating or repeating. 91.37652

Terminating

300

State whether the decimal is terminating or repeating. 3.14141414...

Repeating

400

State whether the decimal is terminating or repeating. 122.424242...

Repeating

500

How can you tell whether a decimal terminates or repeats?

Vinculum: line overtop of repeating decimals Ellipsis: (...) after decimals Both represent repeating decimals.

Fraction to Decimal Conversions

100

5/9

0.55...

200

3 /8

0.375

300

2  5/8

2.625

400

7  6/11

7.54...

500

When using long division to convert a fraction into a decimal, where do the numerator and denominator go?

Numerator=dividend (inside) Denominator= divisor (outside)

Law and Ordering of Rational Numbers

100

Which number is larger? 2.75 OR 2  3/5

2.75

200

Which number is smaller? 4  3/5 OR 4.66...

4.66...

300

Place the following in order from LEAST to GREATEST. -1, 0.9 , 1.66..., -2 , 0.625

-2, -1 , 0.625, 1.66..., 0.9

400

Place the following in order from LEAST to GREATEST. 0.33... , 1/3, 0.33333333... 9/12

All numbers are the same.

500

Place the following in order from LEAST to GREATEST. 3.67, -0.56, 3  2/3 , -2 , -1, -1  1/7

 -2, -1  1/7, -1, -0.56, 3  2/3,  3.67

Fractions in the Real World

100

Multiply the original ingredient amount by 1/4 

1 tsp. dried dill

1/4 tsp. of dried dill

200

Multiply the original ingredient amount by 1/2 

1/8 cup of olive oil

1/16 cup of olive oil

300

Multiply the following ingredients by 3 

2/3 cup of zucchini

2 cups of zucchini

400

Multiply the original ingredient by 1/3 

2/3 cups of shredded carrots

2/9 cups of shredded carrots

500

Multiply the original ingredients by 3/4. (SIMPLIFY) 

5/6 cups of sliced almonds

15/24 Simplified: 5/8 cups of sliced almonds

Positive & Negative

100

Find the answer. 3.67 + (-0.29)

3.38

200

Find the answer. -0.008 + (-1.2)

-1.208

300

Find the answer. -1.2 - (-3.987)

2.787

400

Find the answer. -3.5(-6.01)

21.035

500

-4.37(2.8)

-12.236