# Arithmetic - math word problems

1. Infants water From the tank, which has 10 hectoliters of water for infants, went 580 liters at mornening and 340 liters in the afternoon. How many liters left in the tank?
2. Value Determine the value of the following exspressions: a) (23-25)·(4-5) b) (97-123):(18+8)
3. Land cost The land is worth 33295 CZK. 1st owner has 5/15, 2nd owner has 4/15, 3rd owner has 1/5 4th owner has 1/5. How much CZK each of them will receive?
4. Angles in triangle Calculate the alpha angle in the triangle if beta is 61 degrees and 98 gamma degrees.
5. Cube 8 The surface of the cube is 0.54 m2. Calculate the length of the cube edge.
6. Triangle KLM In the rectangular triangle KLM, where is hypotenuse m (sketch it!) find the length of the leg k and the height of triangle h if hypotenuse's segments are known mk = 5cm and ml = 15cm
7. Clock Tower What angle is betwenn hands on Clock Tower when show 17 hours and 35 minutes?
8. Fill by colour Write numbers from 0 to 38 on the paper. If the two numbers differ by 2, color them same colour. How many pairs do you colour?
9. Is equal Is equal following terms? ?
10. Freezer Temperature is -8 degrees Celsius in the freezer. Outside temperature is 2 degrees Celsius. One minute took to change temperature by one degree Celsius if we open door. How many minutes the temperature in the freezer will rise?
11. Fe vs. H2O The volume of what the body of the same weight is greater - iron or water?
12. Annulus Calculate the area of two circles annulus k1 (S, 3 cm) and k2 (S, 5 cm). Pupils doing research which a winter sport do their classmates most popular. They found that 2/5 of classmates would most like to play hockey, skate prefer 2/9 pupils, 3/10 students prefer skiing and 1/15 classmates don't like any winter sport. What pro
14. Gain Find the gain whenever the output power is 21x the input power.
15. Triangle Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle. a = 158 b = 185 c = 201
16. Sparrow ball On the sparrows ball were males and females. There were 170 sparrows. Males was 20 more than females. How many sparrow female was at a ball?
17. Medians and sides Triangle ABC in the plane Oxy; are the coordinates of the points: A = 2.7 B = -4.3 C-6-1 Try calculate lengths of all medians and all sides. Add and write the result again as hours, minutes, seconds: 2hodiny45min15s + 1h20m50s = What is greater angle? -0.7 radians or -0.7π radians? Which of those angles are obtuse?