|-8| - |-5| = 8-5 = 3
|-10| * |-15| = 10*15 = 150
|240| : |-80| = 240:80 = 3
|-710| + |-290| = 710+290 = 1000
|-2,3| + |3,7| = 2,3+3,7 = 6
|-4,7| - |-1,9| = 4,7-1,9 = 2,8
|28,52| : |2,3| = 12.4
|-4/5| - |-2/3| = 4/5 - 2/3 = 12/15 - 10/15 = 2/15
|-21/3| * |9/14| = 7/3 * 9/14 = 3/2 = 1,5
|-81/3| : |5/9| = 25/3 : 5/9 = 25/3 * 9/5 = 5 * 3 = 15