136+(6,3+64)
(3,7+4,96)-(3,7-3,04)
-7,8-(5,39-12,8)
(3,91-6,57)+(6,57-2,91)
раскройте скобки
и пометьте цифрами какой пример сделали
1) 136+(6,3+64)=136+70.3=206.3
2) (3,7+4,96)-(3,7-3,04)= 8.66+0.66=9.32
3) -7,8-(5,39-12,8)=-7+7.41=0.41
4) (3,91-6,57)+(6,57-2,91)=-2.66+3.66=1
1.136+70,3=206,3
2.8,66-0,66=8
3.-7,8-7,41=-15.214. -2,66+3,66=-1
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Answers & Comments
1) 136+(6,3+64)=136+70.3=206.3
2) (3,7+4,96)-(3,7-3,04)= 8.66+0.66=9.32
3) -7,8-(5,39-12,8)=-7+7.41=0.41
4) (3,91-6,57)+(6,57-2,91)=-2.66+3.66=1
1.136+70,3=206,3
2.8,66-0,66=8
3.-7,8-7,41=-15.21
4. -2,66+3,66=-1