Question

Use the order of operations to find the value of the expression. 2 + 3 × 16 − 2 × 21 − 3 Correct answer A. 5 Incorrect answer B. 14 Incorrect answer C. 35 Incorrect answer D. 44

Answer 1

(A) 5

Explanation:

The order of operations is BODMAS.

In the expression: 2 + 3 × 16 − 2 × 21 − 3

Multiplication comes first out of the other signs, so we evaluate first.

2 + 3 × 16 − 2 × 21 − 3=2+48-42-3

Next, we evaluate addition

2+48-42-3=50-42-3

Next, we evaluate subtraction

50-42-3=5

Therefore:

2 + 3 × 16 − 2 × 21 − 3=5

The correct option is A.

Answer 2

5

Explanation:

Here, we are to use the order of priority to solve the question.

The order of priority looks like this;

BODMAS

where b represents brackets, o represents of, d represents division , m represents multiplication, a represents addition and s represents subtraction.

We are to use this one after the other with the preceding taking priority over the succeeding

Now let’s calculate!

2 + 3 × 16 − 2 × 21 − 3

we start with the multiplications

2 + 48 - 42 -3

The thing with subtraction and addition is that they can be used at the same time even though addition comes before subtraction.

Thus, we have 2 + 6 -3 = 8-3 = 5