Poziom A

W tym przypadku wystarczy wykonać odpowiednie odejmowanie.

a)

$47-22=25\text{min}$

Minie $25\text{min}$

---

b)

$36-17=19\text{min}$

Minie $19\text{min}$

---

c)

$58-15=43\text{min}$

Miną $43\text{min}$

---

d)

$53-39=14\text{min}$

Minie $14\text{min}$

---

e)

$51-12=39\text{min}$

Minie $39\text{min}$

---

f)

$42-15=27\text{min}$

Minie $27\text{min}$

---

---

Poziom B

Osobno dodajmy godziny i minuty.

a)

$10.05\stackrel{+3\text{godziny}}{\to }13.05\stackrel{+17\text{min}}{\to }13.22$

---

b)

$14.13\stackrel{+2\text{godziny}}{\to }16.13\stackrel{+45\text{min}}{\to }16.58$

---

c)

$9.05\stackrel{+1\text{godzina}}{\to }10.05\stackrel{+25\text{min}}{\to }10.30$

---

d)

$11.03\stackrel{+50\text{min}}{\to }11.53$

---

e)

$18.15\stackrel{+2\text{godziny}}{\to }20.15\stackrel{+30\text{min}}{\to }20.45$

---

f)

$14.30\stackrel{+4\text{godziny}}{\to }18.30\stackrel{+10\text{min}}{\to }18.40$

---

---

Poziom C

Obliczenia wykonajmy po kawałku.

a)

$8.17\stackrel{43\text{min}}{\to }9.00\stackrel{+5\text{min}}{\to }9.05$

$43\text{min}+5\text{min}=48\text{min}$

Miną $48\text{min}$.

---

b)

$11.12\stackrel{7\text{godzn.}}{\to }18.12\stackrel{+8\text{min}}{\to }18.20$

Minie $7\text{godzin}8\text{minut}$

---

c)

$10.35\stackrel{25\text{min}}{\to }11.00\stackrel{+2\text{godzn.}}{\to }13.00\stackrel{+18\text{min}}{\to }13.18$

$25\text{min}+18\text{min}+2\text{godz.}=43\text{min}+2\text{godz.}=2\text{godz.}43\text{minuta}$

Miną $2\text{godz.}43\text{min}$.

---

d)

$7.25\stackrel{35\text{min}}{\to }8.00\stackrel{+10\text{min.}}{\to }8.10$

Minie $45\text{min}$.

---

e)

$9.05\stackrel{2\text{godz.}}{\to }11.05\stackrel{+47\text{min.}}{\to }11.52$

Miną $2\text{godz. }47\text{min}$

---

f)

$7.40\stackrel{20\text{min}}{\to }8.00\stackrel{+22\text{min.}}{\to }8.22$

---

---

Poziom D

a)

$10.40\stackrel{+4\text{godz}}{\to }14.40\stackrel{+35\text{min}}{\to }15.15\text{min}$

---

b)

$12.53\stackrel{+3\text{godz}}{\to }15.53\stackrel{+7\text{min}}{\to }16.00\stackrel{+35\text{min}}{\to }16.35\text{min}$

---

c)

$14.45\stackrel{+1\text{godz}}{\to }15.45\stackrel{+15\text{min}}{\to }16.00\stackrel{+12\text{min}}{\to }16.12\text{min}$

---

d)

$6.15\stackrel{+3\text{godz}}{\to }9.15\stackrel{+45\text{min}}{\to }10.00\stackrel{+10\text{min}}{\to }10.10\text{min}$

---

e)

$4.54\stackrel{+2\text{godz}}{\to }6.54\stackrel{+6\text{min}}{\to }7.00\stackrel{+24\text{min}}{\to }7.24\text{min}$

---

f)

$13.38\stackrel{+3\text{godz}}{\to }16.38\stackrel{+22\text{min}}{\to }17.00$