September 2018 2 23 Report

1. zapisz odejmowanie w postaci dodawania i obliccz :

a.4-10

b. 17 - (-20)

c.-8-(-12)

d.-15-42
e. -10-7

f. - 25-(-13)

2. zapiszwyrazenie bez nawiasow i oblicz jego wartosc

a.7+(-2)

b.(-21)-(-15)

c. (-21)-(-15)

d.-(-3/4)+(-1/4)

e. -1,2-[-(-0,8)]

f. 7-(-2)

g.-(-0,5)-(-1/2)

h. 24-(-15)+(-32)

3.Opusc nawiasy i ustal czy wynik dzialania bd dodatni czy ujemny a nastepnie oblicz wartosc wyrazenia ;

a.-12+(-18)

b.-4-7

c. - 8 -(-3)


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