70002 - (253+16309)

875131+34915-680173

100-68:17*20

(54+46) : 50*12

70002 - (253+16309) 875131+34915-680173100-68:17*20 (54+46) : 50*12 = 3

70002 - (253+16309) = 53440

1) 253+16309=16562

2) 70002-16562=53440

875131+34915-680173=229873

1) 875131+34915=910046

2) 910046-680173=229873

100-68:17*20=20

1) 68:17=4

2) 4*20=80

3) 100-8=20

(54+46) : 50*12=24

1) 54+46=100

2) 100:50=2

3) 2*12 = 24