Math practice for 13 year olds - page 138 of 415
Number of problems found: 8284
- Find whole
Find whole numbers between 155 and 232 that are divisible by 2, 5, and 10. - Hat and scarf
Katy knitted a scarf four times faster than a hat. Knitting together lasted 15 days. How much did she knit a hat? - Door painting time
Peter and Milo painted the garage door in five hours. Peter would paint the door by himself in 10 hours. In how many hours would Milo paint the door by himself? - What is similar fraction
Which of the following is a similar fraction of 9/10,3/5,1/4 - What fraction 2
What fraction is equal to 50% of 1/3? - The ratio 7
The ratio of the sides of two squares is 4:5. If the sum of their areas is 180 cm². Find the sides of the two squares. - What percent 4 What percent of 40 is 14?
- Three languages 2
Participants of a congress may present their contributions in English, Italian, or Spanish. Each of the 120 participants knows at least two of these languages, and 10 participants speak all three languages. English and Spanish is spoken by exactly as many - Calculate
In one class, each of the 30 students speaks either English or German. Three of them speak both languages. Those who speak only German outnumber those who speak only English by three. Using a Venn diagram, calculate: How many students speak English? How m - Cylinder S,V
What is the volume and surface area of a cylinder whose base has a diameter of 3.15 cm and a height of 25 cm? - The morning
The temperature rose 9 degrees from 10:00 AM to noon. By 3:00 PM, the temperature had doubled. From 3:00 PM to 6:00 PM, the temperature rose 4 degrees to 96 degrees. What was the temperature at 10:00 AM that morning? - Joseph tooth loss
Joseph has five teeth. He'll lose half a tooth in 3 days. How many teeth did he lose in 5.3 days? - Directly and inversely
If z varies directly as x and inversely as y, and z = 16 when x = 3 and y = 2, find z when x = 5 and y = 3 - Jointly function
If z varies jointly as x and y, and z = 12 and x = 2 and y = 4, find z when x = 5 and y = 2 - Planting
The eighth graders took part in the planting of saplings in the forest for four days. On Monday, they planted a quarter of all the saplings they were supposed to plant. They planted a third of what they had left from Monday on Tuesday. On Wednesday, half - The ratio 6
The ratio of cats to dogs is 2 to 5. If there are 35 total animals in the shelter, how many dogs are there? - Fruits 6
Ten mangoes, six guavas, and eight chicos are in a basket. What part of the total number of fruits are guavas? - Janna
Janna takes her medicine three times a day. If 2 1/2 ml is taken each time, how many days will a 60 ml medicine last? - Find two 2
Find two decimals between 4.56 and 6.927 so that the difference between any two consecutive decimals is the same. - A sum 2
A sum of money is divided between Laura and Joan in the ratio of 2:3. Laura gets 8 pesos. How much did Joan get?
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