8G MATH JEOPARDY

LIKE TERMS

100

Combine like terms: 6a + 4a + 4b + 7

10a +4b+ 7

200

Combine like terms: k + 3n - 2n + 4k + k + n

6k + 2n

300

Combine like terms: 4(y + 9) - 3y + 5

y + 41

400

Combine like terms and solve for x: 

2(x + 3x + 6x) = 60

x = 3

500

Combine Like Terms: 

a²b³ + 14a⁴b² +5 + 3a²b⁴ + 4b²a⁴+7

= a²b³ + 18a⁴b² + 3a²b⁴ + 12 

MULTIPLICATION

100

Write in index notation/power form.

2 x 2 x 2 x 2 =

2⁴

200

Find 

h x 2 x i x j x 3 x 4

24hij

300

Find

w² x q³ x  q² x w³  =

= w⁵q⁵

400

If x = -10 and y = 5, find: 

-x² + xy

= - (-10)² + (-10 x 5)

= -100 -50

=-150

500

For x= y/2.25, when x =125, what is y?

y = 281.25

DIVISION

100

What is 10x/10? 

x

200

Find  99t/11t

=9

300

What is a³/a?

a²

400

What is b²a/ab³?

=1/b²

500

What is    hi²j³k⁴/j?

= hi²j²k⁴

FACTORISATION

100

Expand 2(x+1) = 

2x + 2

200

Factorise  5x + 15 = 

5(x + 3)

300

Expand 3(a² + b² + c²) = 

3a² + 3b² + 3c²

400

Factorise   ab² + cb + cdbe

b (ab + c + cde)

500

Expand 45 (a²b⁵c² + 2c²d³ + 7a²b⁷) 

45a²b⁵c² + 90c²d³ + 315a²b⁷

PYTHAGORAS

100

What is another name for the longest side of a right triangle?

Hypotenuse

200

What is the equation for the Pythagorean Theorem?

a² + b² = c²

300

What is the equation to find the shorter side of a right angled triangle?

a² = c² - b²

400

Is this a Pythagorean Triad? How do you work this out?

20, 99, 101

Yes

500

Is this a Pythagorean Triad? How do you work this out?

435, 51, 432

Yes