Question

rules of addition and multiplications​

Answer 1

Answer:

To know the correct answer, one must know the correct order of operations with respect to addition, subtraction, multiplication, division, etc. Rule 20: Multiplication and division must be completed before addition and subtraction. 2 + 3 x 7 = 2 + 21 = 23 is the correct answer to the above question.

Answer 2

addition (+)

multiplication (+)