Question

Thu gọn đơn thức

a) 23.75+25.23

b) 17.115-17.15

c) 39.213+87.39

d) 3³.18-3³.1

Answer 1

a) 23.75+25.23 = 23.(75+25) = 23.100 = 2300

b) 17.115-17.15 = 17.(115-15) = 17.100 = 1700

c) 39.213+87.39 = 39.( 213+39) = 39.300 = 11700

d) 3³.18-3³.12 = 3³.(18-12) = 3³.6 = 27.6 = 16

Answer 2

a,23.75+25.23

=23.(75+25)

=2500

b>17.115-17.15

=17.(115-15)

=1700

c,39.213+87.39

=39.(213+87)

=39.300

=11700

d,