Math practice for 13 year olds - page 66 of 350
Number of problems found: 6988
- Spending 5
A boy spends 3/4 of his pocket money, and then 4/5 of the remainder is given to his sister. If he has 40 left, what did he have at first? - The ratio 8
The ratio of blue cards to red cards in a stack is 4 to 7. If there are a total of 121 cards in the stack, how many of the cards are blue? - To convert
To convert from a Celsius temperature to a Fahrenheit temperature, multiply the Celsius temperature by 9/5 and add 32. Which is the Fahrenheit temperature corresponding to - 30 degrees Celsius? - Possible terms
Write the following expression using the fewest possible terms. the expression quantity two-fifths times t minus 7 plus two-thirds times t end quantity minus quantity five-sixths times t plus 14 end quantity
- Divide in ratio 3
Divide 4089 items between four people, A, B, C, and D, in the proportions: 7:9:4:9. How many items do B, and D get? - The road
3/5 of a road is to be resurfaced. If the road is 2 3/5km long, what length in kilometers is to be resurfaced? - A hairdresser
A hairdresser is deciding where to open her studio. If the hairdresser chooses Location A, she will pay $1200 per month in rent and will charge $45 per haircut. If she chooses Location B, she will pay $1800 monthly rent and charge $60 per haircut. How man - Square 80371
Draw a square EFIJ if EI is equal to 7cm. - Smallest 80368 What is the smallest whole number to replace the known x for: 9> x/3> 4.
- Repetition 80362 How many six-digit numbers without repetition can be formed from the digits 1, 2, 3, 4, 5, and 6, if the numbers are, to begin with: a) the digit 4; b) digits 4 or 5?
- Distance 80348
A cyclist traveled 50 km in 2 hours. A car followed him from the same city and overtook the cyclist in an hour. At what speed was the car going, and at what distance did they meet? - A pipe 2
A pipe is 30 feet long. It needs to be cut into pieces that are each 3/5 feet long. How many pieces can be made from the pipe? - 36 shirts
Thirty-six shirts were on sale for 2/3 of the regular price. If the sale price of each shirt was $30, what was the regular price? - Ice cream
Two and a half liters of ice cream are divided (unequally) into two parts that are in the ratio of 1:7. How much is each part?
- Issac 2 Issac bought some wire for his project. He used 1/3 of the wire and had 80 cm of wire left. How much wire did he have at first
- Four-fifths 2
Four-fifths of Zack's stamps have pictures of animals. If he has 20 stamps with these pictures of animals, how many stamps does Zack have? - Ron has
Ron has 4 2/3 liters of oil. He kept 1 1/4 liters and divided the rest into parts of 3/4 liter each. How many parts did he make? - 20 students
Twenty students took a test. Ten students got an average (arithmetic mean) score of 80. Five of them got an average score of 75. And the remaining 5 students got an average score of 55. What is the average score of the 20 students? - Skip's
Skip's Dog Shelter rescues collies. 3/4 of the collies are older than 10, and 1/3 of the remaining collies are between 3 and 5. Suppose there are 2 dogs between the ages of 6 and 10. How many dogs are there in all at this rescue shelter?
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