S2 Math Review

Fractions of a Quantity

100

1/4 of 100?

25

200

1/100 of 3800

38

300

2/3 of 99?

Show working!

99/3x2=66

400

7/8 of 304?

Show working!

304/8x7=266

500

3/10 of 650?

Show working!

650/10x3=195

Algebra

100

Simplify 2a+3b+1a+5b

3a+8b

200

10a+4m-2a

8a+4m

300

Find the value of 2a-3b?

a=20

b=2

c=5

SHOW WORKING

40-6

34

400

Solve 2x+1=9

SHOW WORKING!

2x=9-1

2x=8

x=8/2

x=4

500

See board

L=2w+1

Fraction Operations

100

1/7 + 2/7

3/7

200

1/6 + 2/6 (in simplest form!)

1/2

300

2/3 + 1/6

5/6

400

1/6 x 1/5

1/30

500

1/5 divided by 2/3

3/10

Misc

100

10/3 as a mixed number

3 1/3

200

2 1/4 as an improper fraction?

9/4

300

Solve -2+(-10)?

-12

400

Solve -5x(-5)?

25

500

Round 3.765 to 2dp.

3.77

Probability

100

Probability of rolling a six on a far dice with 6 sides?

p(6)=1/6

200

Probability of drawing an ace in a fair deck?

P(Ace)=4/52

300

Probability of selecting a vowel in the word 'Calderhead'?

P(vowel)=4/10

400

Probability of selecting a red king in a deck of fair cards?

p(red king)=1/52

500

Probability of rolling an even number on a 6 sided fair die?

p(even)=3/6