1. 360 : 20 = 92 :23 =
170 x 3 =
120 х 5 =
14 х 30 =
350 : 5 =
150 х 6 =
280 : 7 =
90 : 15 =
91:1 =
480 : 60 =
450 + 160 =
113 - 18 =
480 + 360 =
92 x 10 =
7x 90 =
430 - 60 =
29 + 37 =
240 - 130 =
18 x 40 =
2. 9 x9 – 48 : (39 - 33 ) x 7 =
9x ( 16 – 5) - 54 : 9х8 +7х6 =
3. 720004 – 9358 =
5604 x 8 =
3892 + 83968 =
18774:9=