Write a numerical expression for the phrase. Then simplify it.

The sum of - 1 and 9 and 5
What is the numerical expression for this phrase?

2 answers

-1 + 9 + 5 = 8 + 5 = 13
From Internet:

We can form a numerical expression by combining numbers with various mathematical operators. There is no limit to the number of operators a numerical expression may contain. Some numerical expressions use only one operator between two numbers, and some may contain more.

Some examples of numerical expression are given below:

10 + 5

250 - 75

60 × 5 + 10