1 200 + 250 : 50 - 850 = 355
= 1 200 + 5 - 850 =
=1 205 - 850 =
= 355
95 - 450 : 90 x 2 = 85
= 95 - 5 x 2 =
= 95 - 10 =
= 85
8 x 15 - 640 : 20 + 12 =
= 120 - 32 + 12 =
= 88 + 12 =
=100
230 : 10 x 2 + 675 : 15 - 45 : 9 = 86
= 23 x 2 + 45 - 5 =
= 46 + 45 - 5 =
= 91 - 5 =
= 86
362 - 225 x 4 : 6 x 1 + 92 : 4 = 235
= 362 - 900 : 6 + 23 =
= 362 - 150 + 23 =
= 212 + 23 =
= 235
700 : 100 x 36 - 23 x 21 : 7 - 170 = 13
= 7 x 36 - 483 : 7 - 170 =
= 252 - 69 - 170 =
= 183 - 170 =
= 13
