Odpowiedź:
Z.4
a) A, B, C, D, G
b) E, L, M, I, J, F, H, N, K
Z.5
ZM, ZE, AE, AK, MK,
Z.6
1) 3cm+35mm+4cm=3cm+3,5cm+4cm=10,5cm
2) 15dm+5dm+17dm+13dm=50dm
3) 2dm+2dm+2dm+2dm+25cm=2dm+2dm+2dm+2dm+2,5dm=10,5dm
Z.7
a)
[tex]3 \frac{1}{2} \times 2 = 7[/tex]
b)
[tex]68 \div 4 = 17[/tex]
Z.8
a)
[tex]2 \times 2\frac{1}{4} + 2 \times 6 = 4 \frac{1}{2} + 12 = 16 \frac{1}{2} [/tex]
b)
[tex]2 \times 13 + 2 \times 8 = 26 + 16 = 42[/tex]
