Question

1 + 1 + 868 + 9 + 562 + 19 + 374 + 965 + 776 + 9745

tính nhanh

Answer 1

1+1+868+9+562+19+374+965+776+9745

=(1+9)+(1+19)+(868+562)+(374+776)+(965+9745)

=10+20+1430+1150+10710=13320

Answer 2

\(=\left(1+9\right)+\left(1+19\right)+\left(868+562\right)+\left(374+776\right)+\left(965+9745\right)\)

\(=10+20+1430+1150+10710\)

\(=13320\)

Answer 3

=( 1+9 )+( 1+19 )+( 868+562 )+( 374+776 )+( 965+9745 )

=13320

Answer 4

1+1+868+9+562+19+374+965+776+9745=(1+9)+(1+19)+(868+562)+(374+776)+(965+9745)

=10+20+1430+1150+10710=13320

Answer 5