(1) (2)(3) (4) (5) (6)
7) {[(1,35+0,65)²-0,7]÷0,4+0,4}÷1,5=5,76
(1)1,35+0,65=2 (4)3,3÷0,4=8,25
(2)2²=4 (5)8,25+0,4=8,65
(3)4-0,7=3,3 (6)8,65÷1,5=5,76
8)[tex] 8,74^{6} [/tex]÷[tex] 8,74^{4} [/tex]÷8,74²- [tex] 0,25^{5} [/tex]÷ [tex] 0,25^{3} [/tex]÷ [tex] 0,25^{1} [/tex]=[tex] 8,74^{6-4-2} - 0,25^{5-3-1} = 8,74^{0} - 0,25^{1} =1-0,25=0,75[/tex]
9)(22-20,3)·(1-0,9)=2,3·0,1=0,23
10)31,2·10³·(0,01+0,1)=31,2·1000·0,11=3432
............succese ;) ..........
