987 in expanded notation as an addition expression would be 900 + 80 + 7. This is because each digit is represented by its place value, with the hundreds digit in the hundreds place, the tens digit in the tens place, and the ones digit in the ones place. Adding these together gives us 987.
987 = (9 x 100) + (8 x 10) + (7 x 1)
Any positive number added to it's negative is always = 0
No: -987-987=-1974 However, 987-987=0, -987+987=0
1,974
987 is rounded to 990
15% of $987.00= 15% * 987= 0.15 * 987= $148.05
987 + 157 is 1144.
267 + 987 = 1254
992
2098 + 987 = 3,085
9 * 987 = 8,883