Arithmetic - examples
- Traffic collision
When investigating a traffic accident, it was found that the driver stopped the vehicle immediately after the accident by constant braking on a 150 m track in 15 seconds. Do you approve that the driver exceeded the permitted speed (50 km/h) in the village.
Peter spent a quarter of his pocket saving. He has 9 euros now in his wallet . How many euros spent?
749 calories in a 7 - ounce serving . What is the unit rate?
Kangaroo do 10 jumps in 1 minute and then three minutes lie , then will make 10 jumps in 1 minute and 3 minutes lie, and so on. Find the shortest time in which kangaroo do 30 jumps.
- Trapezoid 15
Area of trapezoid is 266. What value is x if bases b1 is 2x-3, b2 is 2x+1 and height h is x+4
Carol with cut bar 12 cm x 12 cm x 135 cm to the cubes. Find the sum of all the surfaces of the resulting cubes.
- Concrete pedestal
The carpenters made wooden mold on a concrete pedestal in the shape of a cube with edge 2 meter long. What is the area in which the concrete touches wooden molds? (No lid or bottom)
- MO Z6-6-1
Write integers greater than 1 to the blanks in the following figure, so that each darker box was product of the numbers in the neighboring lighter boxes. What number is in the middle box?
Rectangular garden 31 meters 40 centimeters long and 20m30cm wide adjacent with the shorter side with another (fenced) garden and on one longest side is 1 meter wide gate. How many meters of fence is needed to buy? (Estimate, calculate, verify a test ca
Is the number 109433 divisible by 7?
Charlie bought 7 same chocolates for 14 Eur. How many euros he pay for 27 chocolates?
- One half
One half of ? is: ?
The parents had 2 daughters. Each of them had one brother. How many members family had?
One brick is 2 kg and half a brick heavy. What is the weight of one brick?
5 trees in 3 lines grows in the orchard. How many trees are in the orchard?
I have 12 balls and my friend has 18. About how many has my friend more balls?
A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours?
Compare fractions ?. Which fraction of the lower?
- Is right?
Is triangle with sides 24, 51 and 45 right triangle?
Compare with characters >, <, =: 63.79 ? 63.79