BEDMAS - Order Of Operations

1. What is 8 x (6 + 4)?

50

80

The given expression is 8 multiplied by the sum of 6 and 4. Using the order of operations, we first calculate the sum inside the parentheses, which is 10. Then, we multiply 8 by 10, resulting in 80. Therefore, the correct answer is 80.

Explanation

The given expression is 8 multiplied by the sum of 6 and 4. Using the order of operations, we first calculate the sum inside the parentheses, which is 10. Then, we multiply 8 by 10, resulting in 80. Therefore, the correct answer is 80.

2. What is 86 - 9 x 9?

5

693

The correct answer is 5 because according to the order of operations (PEMDAS/BODMAS), we need to perform the multiplication before subtraction. So, 9 multiplied by 9 equals 81. Then, subtracting 81 from 86 gives us 5.

Explanation

The correct answer is 5 because according to the order of operations (PEMDAS/BODMAS), we need to perform the multiplication before subtraction. So, 9 multiplied by 9 equals 81. Then, subtracting 81 from 86 gives us 5.

3. Use a calculator to evaluate 16974 - (18 x 45)

16 164

763 020

To evaluate the given expression, we need to perform the multiplication operation first. 18 multiplied by 45 equals 810. Then, we subtract 810 from 16,974, resulting in 16,164. Therefore, the correct answer is 16,164.

Explanation

To evaluate the given expression, we need to perform the multiplication operation first. 18 multiplied by 45 equals 810. Then, we subtract 810 from 16,974, resulting in 16,164. Therefore, the correct answer is 16,164.

4. What is 40 - 16 ÷ 4 ?

6

36

To solve this expression, we need to follow the order of operations (PEMDAS/BODMAS). First, we divide 16 by 4, which equals 4. Then, we subtract 4 from 40, resulting in 36. Therefore, the correct answer is 36.

Explanation

To solve this expression, we need to follow the order of operations (PEMDAS/BODMAS). First, we divide 16 by 4, which equals 4. Then, we subtract 4 from 40, resulting in 36. Therefore, the correct answer is 36.

5. Which of the following equals to 25?

4 x (7 - 2) + 1

4 x (7 - 2 + 1)

4 X 7 - (2 + 1)

The given expression is 4 x 7 - (2 + 1). According to the order of operations (PEMDAS/BODMAS), we need to solve the parentheses first. The sum inside the parentheses is 2 + 1, which equals 3. Thus, the expression becomes 4 x 7 - 3. Multiplying 4 by 7 gives us 28. Finally, subtracting 3 from 28 results in 25. Therefore, the expression 4 x 7 - (2 + 1) equals 25.

Explanation

The given expression is 4 x 7 - (2 + 1). According to the order of operations (PEMDAS/BODMAS), we need to solve the parentheses first. The sum inside the parentheses is 2 + 1, which equals 3. Thus, the expression becomes 4 x 7 - 3. Multiplying 4 by 7 gives us 28. Finally, subtracting 3 from 28 results in 25. Therefore, the expression 4 x 7 - (2 + 1) equals 25.

6. Use a calculator to evaluate 8537 + 4825 ÷ 25

534

8730

To evaluate the expression 8537 + 4825 ÷ 25, we need to follow the order of operations (PEMDAS/BODMAS). First, we divide 4825 by 25, which equals 193. Then, we add 8537 to 193, which equals 8730. Therefore, the correct answer is 8730.

Explanation

To evaluate the expression 8537 + 4825 ÷ 25, we need to follow the order of operations (PEMDAS/BODMAS). First, we divide 4825 by 25, which equals 193. Then, we add 8537 to 193, which equals 8730. Therefore, the correct answer is 8730.

7. Where would you add brackets to make this equation true: 6 x 2 + 8 ÷ 4 = 15

Around the 6 x 2

Around the 2 + 8

Around the 8 ÷ 4

To make the equation true, we need to determine the order of operations. According to the PEMDAS rule, we must perform the multiplication before addition. Therefore, adding brackets around the 2 + 8 will ensure that the addition is done before the multiplication. This way, the equation becomes (6 x 2) + (8 ÷ 4) = 15, which is true.

Explanation

To make the equation true, we need to determine the order of operations. According to the PEMDAS rule, we must perform the multiplication before addition. Therefore, adding brackets around the 2 + 8 will ensure that the addition is done before the multiplication. This way, the equation becomes (6 x 2) + (8 ÷ 4) = 15, which is true.