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1) 150 -(14-0) =
150 - 14 =
136
2) (8-6) + (7-4) =
2 + 3 =
5
3) (9 + 5 ) + (7-4) =
14 + 3 =
17
4) 89 - (56 - 41) =
89 - 15 =
74
5) (11-5) - (9-3) =
6 - 6 =
0
6) (9-4) + (3 + 2 + 5 ) + (85 - 40) - (95 - 80)=
5 + 10 + 45 - 15 =
15 + 45 - 15 =
60 - 15 =
45
Multiplicaciones:
a) 24
b) 432
c) 666
d) 1425
e) 3477
f) 127710
g) 36840
h) 98645
Divisiones:
a) 58,85
b) 278, 65
c) 51,54
d) 19
e) 19
f) 13
g) (604 : 5) : (10: 5)=
120, 8 : 2 =
60,4
h) 60 : (10 : 2 ) =
60 : 5 =
12
i) 10 . (6 : 2) . (4 : 2 ) . 7 =
10 . 12 . 2 . 7 =
120 . 2 . 7 =
240 . 7 =
1680