Okay, I will complete the tasks by filling in the missing numbers in the rectangles to make the equalities true. Here are the solutions:
Column A
* 24 + 76 = 100
* 4 * 2.5 = 10
* 1 + 89 = 90
* 92 + 8 = 100
* 87 + 13 = 100
* 2 * 50 = 100
* 2500 : 25 = 100
* 20 + 80 = 100
* 2500 : 25 = 100
* 75 + 25 = 100
* 225 : 15 = 15
* 20 + 80 = 100
* 5 * 9 = 45
* 55 + 45 = 100
* 80 - 20 = 60
* 63 - 73 = -10
* 113 - 13 = 100
* 25 * 4 = 100
* 70 + 30 = 100
* 7000 : 70 = 100
* 75 + 25 = 100
* 77 + 23 = 100
* 7700 : 100 = 77
* 15 + 85 = 100
Column Б
* 90 + 110 = 200
* 146 + 54 = 200
* 25 : 5 = 5
* 1800 : 10 = 180
* 180 + 0 = 180
* 180 + 20 = 200
* 5 + 55 = 60
* 2000 : 10 = 200
* 90 + 30 = 120
* 4 * 30 = 120
* 0 + 120 = 120
* 90 + 30 = 120
* 10 * 12 = 120
* 100 + 20 = 120
* 30 + 150 = 180
* 25 : 5 = 5
* 20 + 80 = 100
* 5 * 24 = 120
* 80 + 40 = 120
* 2.4 * 50 = 120
* 5 + 125 = 130
* 15 + 5 = 20
* 40 * 3 = 120
* 5 + 85 = 90
* 4 * 20 = 80
Column B
* 300 + 700 = 1000
* 990 + 10 = 1000
* 150 + 850 = 1000
* 250 * 4 = 1000
* 70 + 930 = 1000
* 65 000 : 65 = 1000
* 250 + 750 = 1000
* 600 + 400 = 1000
* 4000 : 4 = 1000
* 800 + 200 = 1000
* 50 + 50 = 100
* 7000 : 7 = 1000
* 800 + 200 = 1000
* 5 * 200 = 1000
* 750 + 250 = 1000
* 1 + 999 = 1000
* 400 : 20 = 20
* 100 + 900 = 1000
* 150 + 850 = 1000
* 4 * 250 = 1000
* 125 * 8 = 1000
* 500 + 500 = 1000
* 10 * 100 = 1000
* 770 + 230 = 1000
* 900 + 100 = 1000