7th Unit 2 Signed Numbers Jeopardy

Rational Numbers/Rules

100

What is an integer?

A number that can be negative, 0, or positive and is not a decimal or a fraction that results in a decimal

200

What are the rules for multiplying and dividing signed numbers?

Multiplying - same sign positive, opposite signs negative

Dividing - same sign positive, opposite signs negative

300

What number do the whole numbers start at?

0

400

What are the rules for adding signed numbers?

same sign - add the numbers and keep the sign

different sign - subtract the numbers and take the sign of the number with the greater absolute value

500

Give 5 examples of a rational number.

Any number that is a ratio of two integers (can be written as a fraction). It can be a whole number, integer, or a fraction/decimal that terminates or repeats. 

ex) 3.4, 0, 198, 4/5, 0.99999

Adding Signed Numbers

100

-14 + (-4)

-18

200

-46 + 28

-18

300

35 + (-20) + (-7) 

8

400

3 + (-14) + 9 + (-9) + (-18) + 2

-27

500

-100 + (-50) + 87 + 91 + (-62) + (-24)

-58

Subtracting Signed Numbers

100

9 - (-13) 

22

200

-23 - 89

-112

300

45 - 193

-148

400

13 - 8 - (-9) - 13 

1

500

-123 - (-100) - (-32) - 51 - (-21)

-21

Multiplying/Dividing Signed Numbers

100

- 4 x 6

-24

200

-10 x (-30)

300

300

4 x (-3) x (-13) 

156

400

5 x 6 x (-16) x 12

-5,760

500

-11 x 8 x (-2) x (-3) x 10 x (-1)

5,280

Order of Operations

100

(12 - 6 ) x (-9)

-54

200

11 - (4)² + (-23) - 2(3)

-34

300

12(-2 + 11) - (-3)² + 4²

115

400

13 x (-3) - (40/8 - 10) - 3² - (-11) 

-32

500

((-2)⁴ + (-3)³ - (10 - 13) x 2 ) / (100 - 5³ - 2(5))

1/7