Question

Questiona + 4 = 10. If a must be equal to one of the values below, what is the value of a?Select the correct answer below:4679

Answer 1

`6`

1) In this question, we can solve it in two different ways. Either algebraically, or by mental Math.

2) Algebraically we have:

`\begin{gathered} a+4=10 \\ a+4-4=10-4 \\ a=6 \end{gathered}`

By mental math, we just need to ask ourselves how much can I add to 4 and get 10,? The answer will be six.

3) Thus, the answer is 6