Question

Answer 1

b: =6,85(15,82-3,5-2,32)=6,85*10=68,5

c: =0,35+2=2,35

Answer 2

\(b,15,8\times6,85-6,85\times3,5-2,32\times6,85\\ =6,85\times\left(15,8-3,5-2,32\right)\\ =6,85\times9,98\\ =68,363\\ c,1,25\times0,35\times0,8+0,5614+1,4386\\ =\left(1,25\times0,8\right)\times0,35+0,5614+1,4386\\ =1\times0,35+0,5614+1,4386\\ =0,9114+1,4386\\ =2,35\)

Answer 3

\(b,15,82\times6,85-6,85\times3,5-2,32\times6,85\\ =6,85\times\left(15,82-3,5-2,32\right)\\ =6,85\times10\\ =68,5\)

\(c,1,25\times0,35\times0,8+0,5614+1,4386\\ =1\times0,35+0,5614+1,4386\\ =0,35+2\\ =2,35\)

Answer 4

đề hơi dài nên lười ghi

b)

=6,85x(15,82-3,5-2,32)

=6,85x10

=68,5

c)

=1,25x0,8x0,35+0,5614+1,4386

=1x0,35+0,5614+1,4386

=0,35+0,5614+1,4386

=2,35

 

Answer 5

2,35