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  3. Math: Middle School: Grades 6, 7 and 8
  4. Algebra - BODMAS Otherwise Known as BIDMAS
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Algebra - BODMAS Otherwise Known as BIDMAS
'Order' and 'Index' mean the same thing. (They are sometimes known as exponents too.)

Algebra - BODMAS Otherwise Known as BIDMAS

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In algebra, the 'O' in BODMAS stands for 'Order' and the 'I' in BIDMAS stands for 'Index'. 'Order' and 'Index' mean the same thing. The rules of BODMAS (otherwise known as BIDMAS) in Math are fairly easy to remember but all too easy to forget!

1.
What is the value of 2 + 3 x 5?
10
15
17
25
Work out the multiplication sign BEFORE the addition sign
2.
'Order' and 'Index' mean the same thing - they are the small numbers to the upper right of other numbers. What other name is sometimes given to these small numbers?
Expatriates
Expendables
Exponents
Expulsions
Whatever you call them, they need to be dealt with immediately after Brackets
3.
What is the value of x3 / (4y - 7), when x = 5 and y = 8?
3
4
5
6
125 / 25
4.
What is the value of 2 x 3 + 5?
10
11
15
16
Work out the multiplication sign BEFORE the addition sign
5.
What is the value of 2a3 - a, when a = 4?
118
120
122
124
(2 x 64) - 4
6.
What is the value of (3 + a)(4 + a) when a = 4?
56
65
86
68
7 x 8
7.
What is the correct sequence for mathematical operations?
Addition, Brackets, Division, Order, Multiplication, Subtraction
Brackets, Division, Addition, Order, Multiplication, Subtraction
Brackets, Order, Division, Multiplication, Addition, Subtraction
Subtraction, Addition, Multiplication, Division, Order, Brackets
They don't call it BODMAS for nothing!
8.
What is the value of 3x2 when x = 2?
3
6
9
12
3 x (2 x 2)
9.
If x = 5, which of these calculations is correct?
6 + x + 7 - 3 + x - 2 = 24
6x + 7 - (3x - 2) = 24
(6x + 7) (3x - 2) = 24
6x + 7 - 3x - 2 = 24
30 + 7 - 13
10.
What is the value of (3x)2 when x = 2?
6
12
36
48
(3 x 2)(3 x 2)
Author:  Frank Evans
Math: Middle School: Grades 6, 7 and 8 Play this quiz again

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