Question

Tính;

a)17*25+25*33+25*50

b)125*15-25*15

Answer 1

a) 17 x 25 + 25 x 33 +25 x 50 = 25 x (17 + 33 + 50)

                                               = 25 x 100 = 2500

b) 125 x 15 -25 x 15 = 15 x (125 - 25)

                              = 15 x 100 = 1500

Answer 2

a. 17.25+25.33+25.50

= 25.(17+33+50)

= 25.100

= 2500

b. 125.15-25.15

= 15.(125-25)

= 15.100

= 1500

Answer 3

a)17*25+25*33+25*50

=25 x (17+33+50)

=25 x 100

= 2500

b)125*15-25*15

=15 x (125-25)

=15 x 100

=1500