Question

c) 7m + 200 cm = ........ 

d ) 6dm - 30 m m = .........

Answer 1

C, =900cm

D,=570mm

Answer 2

c)900 cm

d)30 mm

Answer 3

900 cm

570 mm

tk mình nha

Answer 4

c)7m+ 200 cm                   hoặc   7m+ 200 cm

=700cm+200cm                          =7m+2m

=900cm                                      =9m

d)6dm -30mm

=600mm-30mm

=570mm

Answer 5

6 dm = 600 mm

d> 570 mm

Answer 6

7 m + 200 cm

= 700 cm + 200 cm

= 900 cm

Hoặc

7 m + 200 cm

= 7 m + 2 m

= 9 m

60 dm - 30 mm

= 6000 mm - 30 mm

= 5970