Ab+3c=3c+ab a-b-c=-1(b+c-a) 8(a+b+c)=8a+8b-8c a-b-c=-1(b+c-a)
0,50 = 0,5000
4,209 > 4,2
7,03 < 7,033
9,08 = 9,080
<span>1² = 1
2²= 4
3² = 9
4² = 16
5² = 25
6² = 36
7² = 49
8² = 64
9² = 81
10² = 100</span>
<span>11² = 121
12² = 144
13² = 169
14² = 196
15² = 225</span>
1) 606-305-298=3 3)268×6:67=24. 4)12+2253:751=15