987 rounded to the nearest 100 is 1000.
It rounds to 987 metres.
1000
It then is 990
990
15.975 ×10^(-3) is correct answer
No: -987-987=-1974 However, 987-987=0, -987+987=0
1,974
15% of $987.00= 15% * 987= 0.15 * 987= $148.05
987 + 157 is 1144.
267 + 987 = 1254
992