Subtracting - 5th grade (10y) - math problems

1. Students at cinema All pupils from the school went to the cinema for a film performance. The cinema has 400 seats, 2 rows of 20 seats remain unoccupied. 10 places were occupied by teachers. How many students were there?
2. Wood 11 Father has 12 1/5 meters long wood. Then I cut the wood into two pieces. One part is 7 3/5 meters long. Calculate the length of the other wood?
3. Subtraction How many times you can subtract the number 4 from the number 64?
4. Textbooks After check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn?
5. It is rectangular? Size of two of the angles in a triangle are: α=110°, β=40°. Is it a right triangle?
6. Theater The theater has in each row with 19 seats. Ticket to the first 10 rows is for 30 USD. In next rows is for 15 USD. The theater was completely sold out. Revenue was 12255 USD. How many rows are in the theater?
7. Piggy A man bought a pig for € 60 then sold it for € 75. Then again bought for € 90 and sold it for € 100. How many € earned?
8. I think number I think number.When I add 841 to it and subtract 157, I get a number that is 22 greater than 996. What number I thinking?
9. Chocholate Table of chocolate is divided into squares on its surface. Lengthwise has 15 squares and widthwise 19 squares. We must chocolate broke into individual squares. How many times we have broke it to get only individual squares? It is not permitted to break
10. Efficiency of rail With subsidies are business easy. Calculate how much must cost rail ticket (x) in today's ticket price € 11 and if the trains was not subsidized, if it is known that without subsidies would cost three times today's ticket prices. Calculate the value of.
11. Mistake Nicol mistake when calculate in school. Instead of add number 20 subtract it. What is the difference between the result and the right result?
12. Theatre Theatrical performance started at 15:50 and ended at 18:50. How many minutes long?
13. Opposite numbers Calculate opposite numbers (additive inverse) to given ones:
14. Five girls Five girls traveling by bus. Each holds in each hand two baskets. In each basket are four cats. Each cat has three kittens. Two girls exits bus. How many legs are in the bus?
15. Boys and girls In the class are 20 boys and 5-times less girls. How many girls are in the classroom? How many all children are in the class?
16. Cast brass Brass cast weight was 3.84 kg, it had turned into piston weight 3.491 kg. How many grams of brass was turned off?
17. Mom and daughter Mom is 30 years older than the daughter. What is the age difference between them in 35 years?
18. Saving Mom said that Suzan save about 120 EUR (rounded to tens). How many euros she could at least save (minimum)? How much and how many times is 72.1 greater than 0.00721? The thermometer showed -3°C at morning. Then temperature was increased by 1°C again increased by 1°C and then decreased by 1°C and then decreased by 4°C. Which terminal temperature thermometer shows?