# Activities 2

## 2.1)

Convert from decimal numbers to percentages:

a)
$0.5$
b)
$0.75$
c)
$0.65$
d)
$0.99$
e)
$0.02$
f)
$1.0$
g)
$2.5$
h)
$6$

a)
$0.5$
b)
$0.75$
c)
$0.65$
d)
$0.99$
e)
$0.02$
f)
$1.0$
g)
$2.5$
h)
$6$

## 2.2)

Convert from fractions to decimal numbers to percentages:

a)
$\frac{1}{4}$
b)
$\frac{1}{5}$
c)
$\frac{3}{4}$
d)
$\frac{3}{5}$
e)
$\frac{2}{5}$
f)
$\frac{4}{5}$
g)
$\frac{1}{3}$
h)
$\frac{2}{3}$
i)
$\frac{32}{48}$
j)
$\frac{1}{40}$
k)
$\frac{30}{45}$
l)
$\frac{9}{2}$

a)
$\frac{1}{4}$
b)
$\frac{1}{5}$
c)
$\frac{3}{4}$
d)
$\frac{3}{5}$
e)
$\frac{2}{5}$
f)
$\frac{4}{5}$
g)
$\frac{1}{3}$
h)
$\frac{2}{3}$
i)
$\frac{32}{48}$
j)
$\frac{1}{40}$
k)
$\frac{30}{45}$
l)
$\frac{9}{2}$

## 2.3)

A fish filet weighs 900 grams. Asma buys 300 grams of the filet. What percentage of the filet did Asma buy?

## 2.4)

There are 85 students in fifth grade at school, and 45 of them are girls.

a)
Make a quick estimate of what percentage of the students in the fifth grade are girls.
b)

## 2.5)

A large cake weighs 1400 grams, and Eric wants to buy 800 grams of it.

a)
Make a quick estimate of what percentage of the cake Eric is buying. You can make a quick sketch of the cake (either a round one or a sheet cake with $2×7$ pieces) to help you.
b)
Find the exact answer using a calculator.

## 2.6)

A piece of meat weighs 400 grams. Ada wants to use 320 grams of it to cook with.

a)
Make a quick estimate and sketch of what percentage of the meat Ada cooks with.
b)