Odpowiedź :
1.
Odp. C
2.
Suma liczby 5 i p
3.
1/2 * 6 +4 =3 + 4 =7
4.
20 - m
Odp. B
5.
P = b * a
Obw = 2b + 2a
P = 1 1/4 * 4 = 5/4 * 4/1 =20/4 =5 cm ^2
Obw = 1 1/4 * 2 + 4 * 2 = 2 2/4 + 8 = 10 1/2
6.
5 * 3 1/2 - 3 - 2 * 3 1/2 +5 =15 5/2 - 3 - 6 2/2 + 5 =12 5/2 - 3 - 7 + 5 =9 5/2 - 7 + 5 = 7 5/2 = 9 1/2