Question

Tính nhanh : 206 x 8 x 5

( 48 × 55 ) : 8

( 147 × 12 ) : 6

Answer 1

206 x 8 x 5

=206x(8x5)

=206x40

=8240

Answer 2

( 48 × 55 ) : 8

=(48:8)x55

=6x55

=330

Answer 3

206 x 8 x 5

=206x(8x5)

=206x40

=8240

Answer 4

( 147 × 12 ) : 6

=147x(12:6)

=147x2

=294