BODMAS Quiz

What does the 'B' in BODMAS stand for?

• Bracket

• Base

• Binary

• Balance

Answer explanation

The 'B' in BODMAS stands for 'Bracket', which indicates that operations within brackets should be performed first in mathematical expressions. This is essential for correctly solving equations.

Which operation is represented by 'O' in BODMAS?

• Order or Power

• Operation

• Opposite

• Output

Answer explanation

In BODMAS, 'O' stands for 'Order' or 'Power', which refers to operations involving exponents. This is crucial for determining the correct order of operations in mathematical expressions.

Evaluate the expression using BODMAS: 5 + 1 × 3

• 8

• 15

• 18

• 20

Answer explanation

According to BODMAS, we perform multiplication before addition. So, 1 × 3 = 3, then add 5: 5 + 3 = 8. Therefore, the correct answer is 8.

Insert brackets to make the calculation correct: 20 ÷ 2 + 3 = 4

• (20 ÷ 2) + 3

• 20 ÷ (2 + 3)

• (20 ÷ 2 + 3)

• 20 ÷ 2 + (3)

Answer explanation

The correct choice is 20 ÷ (2 + 3). This simplifies to 20 ÷ 5, which equals 4, making the equation true. The other options do not yield 4.

What is the result of the expression 7 × (8 - 3)?

• 21

• 35

• 40

• 25

Answer explanation

To solve 7 × (8 - 3), first calculate the expression in parentheses: 8 - 3 = 5. Then multiply: 7 × 5 = 35. Therefore, the correct answer is 35.

Calculate the result of 9 + 3 × 18 ÷ 9.

• 15

• 21

• 27

• 18

Answer explanation

First, follow the order of operations: 3 × 18 = 54, then 54 ÷ 9 = 6. Finally, add 9 + 6 = 15. Thus, the correct answer is 15.

Which part of the expression should be calculated first in 8 + (7 - 5) × 6?

• 8 + 7

• 7 - 5

• 5 × 6

• 8 × 6

Answer explanation

In the expression 8 + (7 - 5) × 6, the parentheses indicate that 7 - 5 should be calculated first. This is because operations inside parentheses take precedence over addition and multiplication.

What is the result of the expression 8 × (6 + 3) ÷ 5?

• 14.4

• 18

• 12

• 16

Answer explanation

First, calculate the expression inside the parentheses: 6 + 3 = 9. Then, multiply: 8 × 9 = 72. Finally, divide by 5: 72 ÷ 5 = 14.4. Thus, the correct answer is 14.4.

Put brackets in the following to make the expression correct: 6 × 7 - 4 × 8 = 10.

• (6 × 7) - (4 × 8)

• 6 × (7 - 4) × 8

• (6 × 7 - 4) × 8

• 6 × (7 - 4 × 8)

Answer explanation

The correct choice is (6 × 7) - (4 × 8) because it simplifies to 42 - 32, which equals 10. The other options do not yield the correct result.

What is the result of the expression 7 × (8 - 3)?

• 35

• 40

• 45

• 50

Answer explanation

To solve 7 × (8 - 3), first calculate the expression in parentheses: 8 - 3 = 5. Then multiply: 7 × 5 = 35. Therefore, the correct answer is 35.