En anglais

What Percent Means

Mathématiques · Fractions · de 9 à 10 ans

Nom ______________________ Date ____________

Write 35% as a decimal.
Réponse : ______________
What is 35% written as a fraction with denominator 100?
- 35/100
- 35/10
- 100/35
- 3/35
What does the percent sign (%) mean?
- Out of 10
- Out of 100
- Out of 1000
100% means all of something, the whole amount.
En entourer un : Vrai Faux
In a class of 100 students, 50% are boys. What fraction of the class is boys?
- 1/2
- 1/4
- 1/5
What is 7/10 written as a percent?
- 70%
- 7%
- 10%
- 107%
A 10 by 10 grid has 40 of its squares shaded. What percent of the grid is shaded?
- 40%
- 4%
- 400%
- 2.5%
A grid has 100 equal squares. If 60% are shaded, how many squares are shaded?
Réponse : ______________
Ravi writes 60% as the fraction 6/100. What mistake did he make?
- He should have written 6/10 instead
- There is no mistake
- He forgot a zero; it should be 60/100
A grid of 100 squares has 73 shaded. Write the percent shaded as just the number, no % sign.
Réponse : ______________

Corrigé

Pour les adultes. Replier cette page avant de passer le reste.

0.35 · 35% is 35/100, and 35 divided by 100 is 0.35.
35/100 · The word percent means out of one hundred, so 35% is 35 out of 100, written 35/100.
Out of 100 · Percent always means 'out of 100' equal parts.
Vrai · 100% is 100 out of 100 parts, which is everything.
1/2 · 50% is 50 out of 100, and 50/100 is the same as 1/2.
70% · Percent counts parts out of one hundred, so change 7/10 into 70/100, which is 70%.
40% · A 10 by 10 grid has 100 squares, so 40 shaded squares is 40 out of 100, which is 40%.
60 · 60% means 60 out of 100, so 60 squares are shaded.
He forgot a zero; it should be 60/100 · 60% means 60 out of 100, so the fraction is 60/100, not 6/100.
73 · 73 out of 100 squares shaded is 73%, so the number is 73.