Simplifying Expressions
2a + 4a =
6a
Simplify:
16g - 9g
7g
Evaluate when k = 10
4 + k =
14
A number increased by 7
a + 7
A bag has 5 red marbles and 5 blue marbles. What is the probability of randomly selecting a blue marble?
1/2
Simplify:
3ab + 2ab + 6b
5ab + 6b
Simplify:
23b2 - 4b2 + 6a
19b2 + 6a
Evaluate when a = 4
3a + 6
18
Three times a number, decreased by 4
3a - 4
A dice is rolled once. What is the probability of rolling an odd number?
1/2
Simplify:
4y x 8y + 9
32y2 + 9
Simplify:
40w/5
8w
Evaluate when f = 6
f2 + 2f
48
A taxi charges a flat fee of $4 plus $3 for every kilometre travelled (k).
4 + 3k
A spinner has 5 equal sections labelled A, B, C, D, and E. What is the probability of it not landing on a vowel?
3/5
Simplify:
3m x 5m x 2k x k
30m2k2
Simplify:
18a x 2a x cd
36a2cd
4yz + 18 + z2 =
86
Sam is saving money. Each week he saves $20 plus an extra amount equal to half the number of hours he worked that week (h). How much does he save in one week?
20 + 1/2h
A jar has 5 yellow, 4 red, 4 blue, 3 purple, and 6 green lollies. What is the probability of selecting a red or purple lolly?
7/22
Simplify:
48c2d/12cd2
4c/d
Simplify:
75y3z2/15y3
5z2
Evaluate when d = 2 and e = 5
16d + 5e + ed2
77
A concert venue charges $15 for admission plus $8 for each friend you bring. How much does it cost to bring f friends?
15 + 8f
A deck of playing cards is shuffled. What is the probability of selecting a king or a queen?
2/13