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At the bottom of the page there is an interactive quiz.

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): Then, calculate the exact answer.

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 $2 \times 7$ 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): Calculate the exact answer.

You can find the solutions here.

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Converting Percentages to Fractions

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