CÁLCULO MENTAL 2.º - NIVEL 5

Calcula mentalmente :
26 - 6 = ____________________
35 - 2 = ____________________
59 - 7 = ____________________
84 - 3 = ____________________
58 - 8 = ____________________
46 - 4 = ____________________

Calcula mentalmente :
79 - 4 = ____________________
27 - 5 = ____________________
86 - 2 = ____________________
47 - 7 = ____________________
63 - 1 = ____________________
18 - 3 = ____________________

Calcula mentalmente :
24 - 8 = ____________________
68 - 9 = ____________________
55 - 6 = ____________________
32 - 5 = ____________________
74 - 7 = ____________________
83 - 8 = ____________________

Calcula mentalmente :
46 - 7 = ____________________
91 - 4 = ____________________
11 - 3 = ____________________
57 - 9 = ____________________
44 - 5 = ____________________
61 - 2 = ____________________