Order of Operations!
Geometry / Angles
Algebra
Set Theory
BIG BRAIN
100
What does the mnemonic 'BOMDAS' stand for?
Brackets
Of
Multiplication
Division
Addition
Subtraction
100
Area of a triangle
½ x base x height
100
-12m-8-13m
-12m - 13m -8
-25m -8
100
Draw a Venn Diagram to represent the info below.
U = {first 10 counting numbers}
A = {first 5 counting numbers}
B = {factors of 12 greater than 2}
100
Perimeter?
Perimeter = sum of all sides
Perimeter = 7 + 9 + 7.5 + 10
Perimeter = 33.5 cm
200
-10 - 3 x 5
-10 - 15
-25
200
Circumference of circle?
200
-3y + 12 + 4y - 8
-3y + 4y +12 - 8
-y + 4
200
n(A)
n(A) = 5
the number of elements in set A is 5
200
Size of missing angle? Give a reason for your answer
Co- interior angles
x = 180-105
x=75
300
10 - 5 x 4 - 3
10 - 20 - 3
-10 - 3
-13
300
Area of circle
300
(-3q) x (-2r) x (-q²)
-6q³r
Soln
-3 x -2 x -1
6 x -1
-6
300
A ∩ B
A ∩ B = {3, 4}
300
Area?
Area = ½ x ( a + b) x h
a=9 cm, b=10cm, h=6cm
A = ½ x ( a + b) x h
A = ½ x ( 9 + 10) x 6
A = ½ x 19 x 6
A = ½ x 6 x 19
A = 3 x 19
A = 57 cm
400
5 - 10 x 3 - 5 + 3
5 - 30 - 5 + 3
-25 - 5 + 3
-30 +3
-27
400
Area of trapezium?
400
Let u = 1, z =2u
Simplify
-8z + 2z - 3u
-6z - 3u
-6(2) - 3(1)
-12-3
-15
400
Elements of (A ∪ B)'
(A ∪ B)' = {7, 8, 9, 10}
400
500
(2+1)³ - 10 + 2 x 4
(3)³ - 10 + 2 x 4
27 - 10 + 2 x 4
27 - 10 + 8
17 + 8
25
500
Measure and Classify
40 degrees.
Acute angle
500
Let a = 1, b = 3. Simplify
(ab) x (2b) x (a²)
2a³b²
2 x (1³) x(3²)
2 x 1 x 9
18
500
A ⋂ B'
A ⋂ B' = {1, 2, 5}
Solution
A = {1, 2, 3, 4, 5}
B' = {1, 2, 5, 7, 8, 9, 10}
A ⋂ B' = {1, 2, 5}
500
Let s represent sneakers and h represent hats
In January, Naiim had 10 pairs of sneakers and 3 hats. During the year, he donated 2 pairs and doubled his hat collection.
Translate into an algebraic expression
10s + 3h (at the start of the year)
10s - 2s + 3s x 2
8s + 6h