Order of Operations | MCQs

Explanation

To simplify the expression, follow the order of operations:

(-20) + (-8) ÷ (-2) x 3

Divide -8 by -2: -8 ÷ (-2) = 4

Multiply 4 by 3: 4 x 3 = 12

Add -20 and 12: (-20) + 12 = -8

The correct answer is: -8

Explanation

To evaluate this expression, we need to follow the order of operations (PEMDAS):

• Divide 100 by 50: 100 ÷ 50 = 2
• Multiply 2 by 2: 2 × 2 = 4

So, the correct answer is: 4

Explanation

(-2)⁴ means (-2) × (-2) × (-2) × (-2) = 16

-2⁴ means -(2⁴) = -16

So:

(-2)⁴ > -2⁴

Explanation

To evaluate 2(-7)²:

First, calculate the exponent:

(-7)² = (-7) × (-7) = 49

Now, multiply by 2:

2 × 49 = 98

Explanation

To evaluate this expression, we need to follow the order of operations (PEMDAS):

• Divide 3 by 3: 3 ÷ 3 = 1
• Multiply 1 by 0: 1 × 0 = 0
• Add the numbers: 1 + 1 + 2 + 0 = 4

So, the correct answer is: 4

Explanation

 The BODMAS rule dictates the order of operations:

• Brackets,
• Orders (powers/roots),
• Division and Multiplication (from left to right),
• Addition and Subtraction (from left to right).

Therefore, operations within brackets are the first to be solved

Explanation

Given:

$$3 (-4 times 5 - 6)$$

1. Calculate $-4 times 5$:

   $$-4\times 5=-20$$

2. Substitute and simplify inside the parentheses

   $$-20 - 6 = -26$$

3. Now multiply by 3

   $$3 times (-26) = -78$$

Explanation

The calculation is done as follows:

Calculate inside the parentheses:

(4 + 4) = 8

(8 - 4) = 4

Now, add the results:

8 + 4 = 12

So, [(4 + 4) + (8 - 4)] = 12

Explanation

The calculation is done as follows:

3 × 4 = 12
12 ÷ 2 = 6

So, 3 × 4 ÷ 2 = 6.

Explanation

144÷12=12

12×3=36

So,

144÷12×3=36