Question

1. on the first day of school, mr. thibodeaux gave his third - grade students 9 new spelling words to learn. on each day of school after that, he gave the students 6 new spelling words. how many new spelling words had he given the students by the end of the 30th day of school?

f. 174
g. 180
h. 183
j. 189
k. 195

Explanation:

Step1: Calculate words given after first day

The number of days after the first - day is $30 - 1=29$ days. Each of these days, 6 new words are given. So the number of words given in these 29 days is $29\times6$.
$29\times6 = 174$

Step2: Add words given on first day

On the first day, 9 new words were given. We add these 9 words to the total number of words given after the first day.
$174 + 9=183$

Answer:

H. 183