a 20 x 3 236 x 5 = (20x5) x 3 246

=3 246 x 100=324 600

b 346 x 53 + 346 x 47 =346 x (53 +47)

=346 x 100 = 34600

=

a 20 x 3 236 x 5 = (20x5) x 3 246

=3 246 x 100=324 600

b 346 x 53 + 346 x 47 =346 x (53 +47)

=346 x 100 = 34600

=

Mot cua hang co so ki-lo-gam la

250 - 100= 150(kg)

buoi chieu cua hang ban so gao con lai

\(150\times\frac13=50\) (kg)

tong so ca hai buoi ban duoc so gao la

100+50 =150 (kg)

Mot cua hang co so ki-lo-gam la

250 - 100= 150(kg)

buoi chieu cua hang ban so gao con lai

\(150\times\frac13=50\) (kg)

tong so ca hai buoi ban duoc so gao la

100+50 =150 (kg)

Mot cua hang co so ki-lo-gam la

250 - 100= 150(kg)

buoi chieu cua hang ban so gao con lai

\(150\times\frac13=50\) (kg)

tong so ca hai buoi ban duoc so gao la

100+50 =150 (kg)

a)34 287 x 65=2 228 655

b) 557 130 : 42= 13 265