<span>(11.28+3.4:0.85*1.55):4.6-0.8=3</span>
<span>1)3.4:0.85=4</span>
<span>2)4*1.55=6.2</span>
<span>3)11.28+6.2=17.48</span>
<span>4)17.48:4.6=3.8</span>
<span>5)3.8-0.8=3</span>
2, 9, 10, 12, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28 , 29, - какое дальше?
diamon811
30
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-12+24=24-12 т.к. = 12
-24+12=12-24 т.к. =-12
1 и 8 см 2 и 7 см 3 и 6 см 4 и 5 см
8кв.см 14кв.см 18кв.см 20кв.см