Writing expressions
Simplifying easy
Simplifying tricky
Expanding easy
Expanding tricky
100
What does this mean:
5a
5 times a
100
5y + 3y
8y
100
5a + 2b + 6a + 3b
11a + 5b
100
3 ( x + 6 )
3x + 18
100
x ( x + 5 )
x2 + 5x
200
What does this mean:
y divided by 4
200
10m - 2m
8m
200
7a + 10b + 2a + 5b
9a + 15b
200
5 ( y - 2 )
5y - 10
200
y ( 7y - 9 )
7y2 - 9y
300
How would we write:
3 more than b
b + 3
300
6h + 7h - 3h
10h
300
11a + 7b - 3a - 3b
8a + 4b
300
7 ( m + 4 )
7m + 28
300
7x ( 2x + 8 )
14x2 + 56x
400
How would we write:
6 less than m
m - 6
400
18j - 2j + j
17j
400
10w + 9x + 3y + x + 7y
10w + 10x + 10y
400
9 ( 3h - 1 )
27h - 9
400
11m ( 10m - 4y )
110m2 - 44my
500
James has P pounds.
Ann has twice as much.
Mary has 7 pounds more than Ann.
How much do they have altogether?
P + 2P + 2P + 7
= 5P + 7
500
15k + 2k - 18k
- k
500
y + 3y + 9m - 8m - 7y
m - 3y
or
-3y + m
500
11 ( 2k + 5a + 9 )
22k + 55a + 99
500
Expand and Simplify
(x + 2) (x - 1)
Expand = x2 - x + 2x - 2
Simplify = x2 + x - 2