Math grade 7 SBCA

expressions

100

x+3-2y+10x-3

What is 11x-2y

What is -2y+11x

(any equivalent forms are accepted)

200

x²+5-4-2x²

What is -x²+1

What is 1-x²

(any equivalent forms are accepted)

300

2a/2 +4

What is a+4

What is 4+a

(any equivalent forms are accepted)

400

2*4-(3a-2+6a)

What is 10-9a

What is -9a+10

(any equivalent forms are accepted)

500

2y-6a-4y(3y+7y-10)

Double jeopardy

40y²-10-6a+2y

(any equivalent forms are accepted)

ratios

100

The unit rate of 10/200

What is 1/20

200

The unit rate of 6/9

What is 1/3

300

the unit rate of 13/52

1/4

400

the unit rate of 144/288

1/2

500

the unit rate of 13/169

what is 1/13

equations

100

x+2x+4=10

find x

What is 2

200

Joseph's pop up question

Double Jeopardy

Look up at the board.

What is 3

300

6a+6a+10-3a+10 = 110

Find a

What is 9

400

90a⁰ +2a=10

Find what a is

(simplify expression, then continue) 

What is 5

500

420-20+200a=2000

Find a

What is 8

probabillity

100

The probability of landing on heads on a fair coin

What is 1/2

200

The probability of getting an 8 on a fair standard number cube

What is 0

300

The probability of drawing a blue card from a standard deck of cards

What is 0

400

There are 2 blue, 10 purple, 400 pink, and 8 teal marbles.The probability of getting a pink in simplest form.

What is 20/21

500

The probability of picking of number card from a standard deck.

What is 9/13

mystery

100

-2*-100

What is 200

200

The area of a triangle with a height of 10in and a width of 200in

What is 200in²

300

200a+400<_ 1000

Find a

<_ is less than or equal to

What is a<_3

(anything that is equal is acceptable)

400

The volume of a cube with the side length of 10ft

What is 1000

500

The area of a rectangle with a base of 10ft and a height of 480in.

Double Jeopardy

What is 400 feet²

What is 4800 inches²