Ron lost 10 points seven times playing a video game. he then lost an additional 100 points for going over the time limit. what was the total change in his score?
+3453 First, he lost 10 points, 7 times. 10 times 7 will tell us how much he lost here.
$$10 \times 7 = 70$$
He lost 70 points here.
Then, he lost 100 points. 70 + 100 will tell us the total amount he lost then.
$$70 + 100 = 170$$
The total change in his score was 170 points.
+3453 First, he lost 10 points, 7 times. 10 times 7 will tell us how much he lost here.
$$10 \times 7 = 70$$
He lost 70 points here.
Then, he lost 100 points. 70 + 100 will tell us the total amount he lost then.
$$70 + 100 = 170$$
The total change in his score was 170 points.
