# Arithmetic - problems

1. 600 pencils 600 pencils we want to be divided into three groups. The biggest groups have ten pens more than the smallest. How many ways can this be done?
2. Triangular pyramid What is the volume of a regular triangular pyramid with a side 3 cm long?
3. Three numbers We have three different non-zero digits. We will create all 3 digits numbers from them to use all 3 figures in each number. We add all the created numbers, and we get the sum of 1554. What were the numbers?
4. Dozen What is the product of 26 and 5? Write the answer in Arabic numeral. Add up the digits. How many of this is in a dozen? Divide #114 by this
5. Completing square Solve the quadratic equation: m2=4m+20 using completing the square method
6. Balloon and bridge From the balloon, which is 92 m above the bridge, one end of the bridge is seen at a depth angle of 37° and the second end at depth angle 30° 30 '. Calculate the length of the bridge.
7. The smallest number What is the smallest number that can be divided by both 5 and 7
8. This morning This morning it was 80 degrees F outside the temperature increased 12 degrees F. What is the temperature now?
9. Find the sum Find the sum of all natural numbers from 1 and 100, which are divisible by 2 or 5
10. The temperature The temperature at 1:00 was 10 F. Between 1:00 and 2:00, the temperature dropped 15F. Between 2:00 and 3:00, the temperature rose 3F. What is the temperature at 3:00?
11. The temperarture The temperarture is 0 degrees. It drops 5 degrees after 1 hour and then drops 3 degrees more the next hour. What is the temperature after 6 hours?
12. Sum of dividend If X is divided separately 2.63 and 1.40. And the results of the individual divisions are added to give a result less than X. What is X?
13. Carrot seed Carrot seed germination is 85%, weight 1000 carrots seeds are 2.4g. How many seeds are likely to germinate if we sow 8g of seeds?
14. The number The number of 1 cm cubes required to make 4 cm cube is?
15. Jill's Jill's mom stored some of the honey in a container that held 3/4 of a gallon. She used half of this amount to sweeten tea. How much honey, in cups was used in the tea. Express your answers in cups.
16. Aquarium Can 30 liters of water fit in a cuboid aquarium with dimensions a = 3dm b = 6dm c = 5dm?
17. On Sunday On Sunday the temperature reached a high of 38° above 0. That night it dropped to 23° below 0. What is the difference between the high and low temperatures for Sunday?
18. Calculate 3 Calculate the cube volume whose edge is 3x-1,3x-1,3x-1
19. Simplify Simplify expression - which expression is equivalent to: 3(m + 2) − 4(2m − 9)
20. Which Which decimals when subtracted equal 3.89: a - b = 3.89

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