Question

20 x 4 ____ 80 =0 write + - to make the sentence true Question 2: 100 x 100 _____1 = 10,001

Answer 1

Hi there!

Question 1: Answer: -
20 x 4 - 80 = 80 - 80 = 0

Question 2: Answer: +
100 x 100 + 1 = 10,000 + 1 = 10,001