Question

急死人了，简便计算！！！！！！

Answer 1

6.8+1.25x6.8x8
=6.8+1.25x8x6.8
=6.8+10x6.8
=6.8+68
=74.8

Answer 2

=6.8+1.25×8×6.8
=6.8+10×6.8
=6.8(1+10)
=6.8×11
=74.8

Answer 3

=6.8×6.8+1.25×8=6.8×6.8+1000=46.24+1000=1046.24

Answer 4

74.8

Answer 5

462.4

追答

看错～