September 2018 2 21 Report

zadanie 1.

a) 10 % of 80

b) 10 % of 130

c) 20% of 75

d)25%of 32

e)50% of 30

f)20% of 25

g)50 % of 15

h)25% of 42

i)20% of 32

j)10 % of 63

2 zadanie.

5% is half of 10 % 15 % is 10 % + 5%.

So to find 5% of 200 , we first find 10 % of 200, which is 20. We devide 20 by 2 to get 5 %. So 5% of 200 is 10.

a) 5% of 60

b)5% of 120

c) 5% of 20

d) 15% of 60

e)15% of 120

f) 15% of 20

g)15% of 50

h) 15% of 70

i) 15% of 46

j)15% of 137

zadanie 3.

a) 0.23 % of 13

b) 16% of 52

c) 45% of 65

d)73% of 15

e) 82% of 82

f)2% of 29

g)36% of 72

h) 1% of 93

i) 7.5 % of 47

j)107% of 49


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