Mathematics
Grade 7
45 min
Correct errors in everyday use
Tutorial Preview
1
A shirt costs $20 and is 25% off. A clerk says the final price is $5. Is that correct?
2
A poster is 2 feet wide and 18 inches long. A student says the area is 36 sq ft. Is that correct?
3
A gamer scored 100, 150, and 80 points. They claim their average is 330. Is that correct?
Sample Practice Questions
Easy
A $40 game is 10% off. The clerk says the price is $4. What is the correct final price?
0.$4
1.$36
2.$44
3.$40
Easy
A rug is 3 feet by 24 inches. A label says the area is 72 sq ft. What is the correct area in sq ft?
0.72 sq ft
1.27 sq ft
2.6 sq ft
3.9 sq ft
Easy
A student's test scores are 80, 90, and 100. They say the average is the total, 270. What is the correct average?
0.270
1.80
2.100
3.90
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