Question

7) Calcule mentalmente:
a- 200 x10=
f-386 - 10 =
k- ............. : 5 = 150
b- 8 x 100 =
g-270 x 100 =
1- ............. + 34 = 60
DOO
C- 12 x 20 = = .
h- 340 - 40 =
m-
... - 20 = 130
d- 45:9 =
:- 349 + 20 = .......
n- ............ : 7 = 7
e- 28 : 4 =
j-
..........
x 20 = 60
0-...
x 4 = 120​

Answer 1

Resposta:

2000/376/750/800/27000/26/240/300/150/5/369/49/7/3/30