6x 9- 10 x 3=54-30=24
98-4x2x9=98-8x9=98-72=26
9 x 9- 5 x 8- 3 x 1 =81 - 40- 3=41 -3=38
5 x 33 -28 - 5 x 5 =165-28-25 =137 - 25 =112
61 - 56 x 41 -3 3= este gresit
4 x 5 - 3 x 6 + 2 x 10 - 4 x 3 =20 - 18 + 20 - 12 = 2 + 20 - 12 =22 - 12 =10
7 x 5- 6 x 4 + 3 x 5 - 5 x 3 = 35- 24 + 15 - 15 = 11+ 15- 15 =36 - 15=21