Hey there!
(62 + 45) - 20 + 1,000 * 10 - 100
= 62 + 45 - 20 + 1,000 * 10 - 100
62 + 45 = 107
= 107 - 20 + 1,000 * 10 - 100
107 - 20 = 87
= 87 + 1,000 * 10 - 100
1,000 * 10 = 10,000
= 87 + 10,000 - 100
87 + 10,000 = 10,087
= 10,087 - 100
= 9,987
Therefore, your answer is: 9,987
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)