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ADDITION AND SUBTRACTION WITH ADD MODE /
SUMA Y RESTA CON MODO DE SUMA
12.45 + 16.24 + 19.35 – 5.21 =
*1 : was not used in the entries.
*1 : La no ha sido usada en los registros.
MIXED CALCULATIONS / CALCULOS MIXTOS
A. (10 + 2) × 5 =
B. 5 × 2 + 12 =
(1) (2) *
1
(3) (4)
F 6 4 3 2 1 0
1245 12.45 12
.
45 +
1624 28.69 16
.
24 +
1935 48.04 19
.
35 +
521 42.83 5
.
21 –
42
.
83 ✱
42.83
(1) (2) (3) (4)
F 6 4 3 2 1 0
10 10. 10
.
+
2 12. 2
.
+
12
.
◊
12. 12
.
×
5 5
.
=
60
.
✱
60.
(1) (2) (3) (4)
F 6 4 3 2 1 0
5 5. 5
.
×
2 2
.
=
10
.
✱
10.
10. 10
.
+
12 22. 12
.
+
22
.
✱
22.
02.5.15, 3:38 PMPage 20