September 2018 1 141 Report

1.Liczbę dwucyfrową zapisz dwukrotnie obok siebie. Ile razy otrzymana w ten sposób liczba czterocyfrowa jest większa od początkowej liczby dwucyfrowej ?

2.Iloraz dwóch liczb jest równy 10.

a) Dzielną zwiększ 6 razy, a dzielnik zmniejsz 6 razy. Znajdź nowy iloraz.

b) Jak zmieni się iloraz, jeżeli dzielną zwiększysz tyle samo razy, ile zmniejszysz dzielnik ?

3. Pogrupuj odpowiednio czynniki i oblicz wartość podanego wyrażenia.

a) 25x15x6x4 b) 75x11x4 c)125x12x8

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