Unit conversion - 5th grade (10y) - math problems
- Cyclist 12
What is the average speed of a cycle traveling at 20 km in 60 minutes in km/h?
- Two sides paint
The door has the shape of a rectangle with dimensions of 260cm and 170cm. How many cans of paint will be needed to paint this door if one can of paint cover 2m2 of the area? We paint the doors on both sides.
- My father
My father cut 78 slats on the fence. The shortest of them was 97 cm long, the longer one was 102 cm long. What was the total length of the slats in cm?
- The swallow
The swallow will fly 2.8 km per minute. How many km will the swallow fly in one hour?
Try to estimate the weight of the water in an aquarium 50cm long 30cm wide, when poured to a height of 25cm. Calculates the weight of the aquarium's water.
How many 5-liter buckets do you have to pour into a 0.2 m3 container to make it full?
- Avg speed of flight
The students vice adventure had a 2,367 km flight. If they travel time was 2 hours and 56 minutes, what was their average speed in kilometres per hour?
Three factory operators produced 480 units in 50 minutes. How many hours worked? I'm trying to prove or disapprove the idea that the company tell me that it's 2.5 hours. So what is right? Thank you, Petra
- One kilogram
The apple weighs 125 grams and half apple. How many apples weigh 1 kilogram?
- The third
The one-third rod is blue, one-half of the rod is red, the rest of the rod is white and measures 8 cm. How long is the whole rod?
Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep?
How many different rectangles with sides integers (in mm) have a circumference exactly 1000 cm?
- Christmas napkins
The girls embroidered Christmas napkins. Each napkin had the shape of a triangle with sides of 5 dm, 60 cm, and 800 mm. How many cms did the girls sew if they made 15 napkins?
- Water tank
In an empty fire tank, 2150 hl of water jetted in 5 hours. How many hectoliters of water was jetted every hour? How many hectoliters of water was in the tank after three hours?
- Hr to min
Sue biked to school in 5/12 of an hour. How many minutes did it take her to ride to school?
Find the circumference of the table, where the long side is 1.28 meters and the short side is 86 cm.
The diamond has a circumference of 48cm. Calculate the length of its side in dm.
The lesson lasts 45 minutes. For the week, students have 18 lesson hours. How many are the actual hours?
How many cubic centimeters of clay is in a pit of dimensions 4 m x 3 m x 3 m?
- Bean bag
A student tossed a bean bag. It landed 216 inches away. How many yards are equal to 216 inches?