Calcul mental 3
Calcul mental.
por 99XXxXX99
6 cuestiones
1. 998 - 99 = ?
a 888
b 898
c 899
d 988
2. 701 x 3 = ?
a 2 089
b 2 099
c 2 101
d 2 103
3. 6, 5 + 19,1 = ?
a 25, 6
b 25, 9
c 26, 4
d 27, 2
4. 11 x 11 = ?
a 112
b 121
c 132
d 146
5. 55 + 32 = ?
a 78
b 87
c 99
d 101
6. 14 x 3 = ?
a 42
b 47
c 66
d 199