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Cálculo mental resta
Autor :
Teresa Romero Herrera
1.
Calcula: 5 - 1.5 =
A.
3.5
B.
4.5
C.
2.5
2.
Calcula: 2 - 1.5 =
A.
2
B.
1.5
C.
0.5
3.
Calcula: 3 - 1.8 =
A.
1.3
B.
1.2
C.
1.1
4.
Calcula: 10 - 5.5 =
A.
4.5
B.
5
C.
5.5
5.
Calcula: 13 - 6.5 =
A.
6
B.
6.3
C.
6.5
6.
Calcula: 39 - 10.5 =
A.
28
B.
28.5
C.
27.5
7.
Calcula: 4 - 3.3 =
A.
0.7
B.
7
C.
0.3
8.
Calcula: 7 - 4.4 =
A.
3.6
B.
1.6
C.
2.6
9.
Calcula: 9 - 5.5 =
A.
4.5
B.
3.5
C.
2.5
10.
Calcula: 12 - 3.8 =
A.
2.8
B.
3.8
C.
8.2
11.
Calcula: 31 - 8.8 =
A.
22
B.
22.5
C.
22.2
12.
Calcula: 8 - 2.8 =
A.
5.2
B.
2.5
C.
5.3
13.
Calcula: 40 - 9.7 =
A.
30.2
B.
30.1
C.
30.3
14.
Calcula: 50 - 21.2 =
A.
16.2
B.
18.6
C.
16.3