Mathematics
Grade 8
45 min
Correct errors in everyday use
Tutorial Preview
1
Alex thinks a 25% discount on an $80 jacket means it costs $55. What's the error?
2
A room is 180 sq ft. To find sq yards, Ben divides by 3 and gets 60. Is he right?
3
Class A (10 kids) averaged 80. Class B (20 kids) averaged 95. Is the total average 87.5?
Sample Practice Questions
Easy
A $40 game has a 20% discount. Sam pays $30. What is the correct price?
0.$30
1.$32
2.$20
3.$35
Easy
A rug is 90 sq ft. To find the area in sq yards, you divide by what number?
0.3
1.6
2.9
3.12
Easy
Team A (5 players) scored 10 points each. Team B (10 players) scored 4 points each. What is the combined average score per player?
0.7
1.8
2.6
3.7.5
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