Activities 1

1.1)

Rewrite these percentages into fractions where the denominators are 100:

a)
$25$ %
b)
$15$ %
c)
$10$ %
d)
$1$ %
e)
$100$ %
f)
$50$ %
g)
$60$ %
h)
$70$ %
i)
$75$ %

a)
$25$ %
b)
$15$ %
c)
$10$ %
d)
$1$ %
e)
$100$ %
f)
$50$ %
g)
$60$ %
h)
$70$ %
i)
$75$ %

1.2)

Write these percentages as the simplest possible fraction:

a)
$25$ %
b)
$15$ %
c)
$10$ %
d)
$1$ %
e)
$100$ %
f)
$50$ %
g)
$60$ %
h)
$70$ %
i)
$75$ %

a)
$25$ %
b)
$15$ %
c)
$10$ %
d)
$1$ %
e)
$100$ %
f)
$50$ %
g)
$60$ %
h)
$70$ %
i)
$75$ %

1.3)

Write these percentages both as decimal numbers and as fractions where the denominators are 100:

a)
$25$ %
b)
$75$ %
c)
$10$ %
d)
$90$ %
e)
$100$ %
f)
$0$ %
g)
$35$ %
h)
$65$ %

a)
$25$ %
b)
$75$ %
c)
$10$ %
d)
$90$ %
e)
$100$ %
f)
$0$ %
g)
$35$ %
h)
$65$ %

1.4)

Write these per milles into fractions with denominators of 1000:

a)
$250$
b)
$150$
c)
$10$
d)
$1$
e)
$1000$
f)
$100$
g)
$600$
h)
$70$
i)
$700$

a)
$250$
b)
$150$
c)
$10$
d)
$1$
e)
$1000$
f)
$100$
g)
$600$
h)
$70$
i)
$700$

1.5)

Find the requested parts and simplify the answers as much as possible. Remember the units!

a)
$25$ % of $$20$ b) $75$ % of$$20$
c)
$10$ % of 450 girls
d)
$90$ % of 450 girls
e)
$60$ % of $$100$ f) $40$ % of$$100$
g)
$1$ % of $2200$ boys
h)
$99$ % of $2200$ boys
i)
$70$ % of $$25$ j) $30$ % of$$25$
k)
$75$ % of 300 students
l)
$25$ % of 300 students
m)
$25$ % of 8 footballs
n)
$75$ % of 8 footballs
o)
$100$ % of 8 footballs
p)
$0$ % of 8 footballs

a)
$25$ % of $$200$ b) $75$ % of$$200$
c)
$10$ % of 450 girls
d)
$90$ % of 450 girls
e)
$60$ % av $$1000$ f) $40$ % of$$1000$
g)
$1$ % of 2200 boys
h)
$99$ % of 2200 boys
i)
$70$ % of $$250$ j) $30$ % of$$250$
k)
$75$ % of 300 students
l)
$25$ % of 300 students
m)
$25$ % of 8 footballs
n)
$75$ % of 8 footballs
o)
$100$ % of 8 footballs
p)
$0$ % of 8 footballs

1.6)

Find the sums of these pairs of answers from Activity 1.5)

Do you see a pattern?

You can find the solutions here.