647
1) (5,69+1,606)-1,29=5,69-1,29+1,606=4,4+1,606=6,006
2) (3,7-2,388)+0,76=3,7+0,76-2,388=4,46-2,388=2,072
3) (8,59+2,31)-(8,59-2,31)=10,9-6,28=4,62
4) 54,002-(28,7-5,001)=54,002+5,001-28,7=59,003-28,7=30,303
648
0,5 3,4 1,1
2,6 -0,8 3,2
1,9 2,4 0,7
647
1) (5,69+1,606)-1,29 = 7,296-1,29 = 6,006
2) (3,7-2,388)*0,76 = 1,312*0,76 = 0,99712
3) (8,59+2,31)-(8,59-2,31) = 10,9-6,28 = 4,62
4) 54,002-(28,7-5,001) = 54,002-23,699 = 30,303
648 - смотри рисунок.