Question

Tính bằng cách thuận tiện nhất:

a. (450 x70) : 3

b. 165 : 11 x 999 + 85 x999

c. 72072 : 6 : 12

d. 18180 : 36

Answer 1

a: =150x70=10500

b: =999(15+85)=99900

c: =72072:72=1001

Answer 2

a.31500:3=10500

b.(165:11+85)x999

=(15+85)x999

=100x999

=99900

c.(72072:6):12

=12012:12

=1001

d.18180:36=505

Answer 3

a.31500:3=10500

b.(165:11+85)x999

=(15+85)x999

=100x999

=99900

c.(72072:6):12

=12012:12

=1001

d.18180:36=505

Answer 4

A=10500

B=99900

C=1001

Answer 5

a: =150x70=10500

b: =999(15+85)=99900

c: =72072:72=1001