Question

tinh nhanh

a,132x99+132

b,49x13+49x7

c,[56x27+56x35]:62

d,864x48-432x96/864x48x432

e,1+6+11+16+....+46+51

ai lam nhanh va dung mih k 3k cho.

thoi han la den chieu thu 2ngay 29 nha

Answer 1

d) 864x48-432x96/864x48x432

=864x48-(432x2)x(96:2)/864x48x432

=864x48-864x48/864x48x432

=0/864x48x432

=0

Answer 2

49x13+49x7

=49x(13+7)

=49x20

=980

tíc mình nha

Answer 3

ai lam het tat ca mih k 3 k cho

Answer 4

a) 132x99+132

=132x99+132x1

=132x(99+1)

=132x100

=13200

Answer 5

b) 49x13+49x7

=49x(13+7)

=49x20

=980

Answer 6

c) (56x27+56x35):62

=56x62:62

=56

Answer 7

e)1+6+11+16+...+46+51

=(1+51):2x11

=286