Question

Tính nhanh:

        60 x 3 + 3 x 40

        34 x 5 + 34 x 95

Answer 1

60 x 3 + 3 x 40

= 3 x ( 60 + 40 )

= 3 x 100

= 300

34 x 5 + 34 x 95

= 34 x ( 5 + 95 ) 

= 34 x 100

= 3400

Answer 2

60 x 3 + 3 x 40

= 3 x (60 + 40)

= 3 x 100

=300

34 x 5 + 34 x 95

= 34 x (5+95)

=34 x 100

= 3400

Answer 3

60 x 3 + 3 x 40 

= ( 60 + 40 ) x 3

=       100     x 3

=           300

34 x 5 + 34 x 95

= 34 x  ( 5 + 95 )

=  34 x      100

=       3400

Answer 4

60 x 3 + 3 x 40                                          34 x 5 + 34 x 95 

= 180 + 120                                             = 34 x ( 5 + 95 )

= 300                                                      = 3400

Answer 5

qua dê

34x(5+95)=34x100=3400

60+40)x3=100x3=300

Answer 6

60 x3 +3x40=3(40+60)=3x100=300

34x5+34x95=34(95+5)=34x100=3400

Answer 7

 60 x 3 + 3 x 40

= ( 60 + 40 ) x 3

= 100 x 3

= 300

34 x 5 + 34 x 95

= 34 x ( 5 + 95 )

= 34 x 100 

= 3400

Answer 8

60 x 3 + 3 x 40

= (40 + 60) x 3 

=     100     x 3

=             300

34 x 5 + 34 x 95 

= 34 x (95 x 5)

= 34  x    100

=      3400