Subtracting - examples
123456789 = 100 Use only three plus or minus characters to correct previous identity/equation.
- Interior designer
To make draperies an interior designer needs 11 1/4 yards of material for the den and 8 1/2 yards for the living room. If material comes only in 20 yard bolts, how much will be left over after completing both sets of draperies?
- Brackets 2
Add parenthesis to make true: 5-2×6-4+2=5
The root of the equation ? is: ?
- Bus vs. train
Bus started from point A 25 minutes before the train started from the same place. The bus went an average speed of 41 km/h, train 67 km/h. To point B train and bus arrived simultaneously. Calculate time of train journey, if train and bus travelled the.
- Short cut
Imagine that you are going to the friend. That path has a length 330 meters. Then turn doprava and go another 840 meters and you are at a friend's. The question is how much the journey will be shorter if you go direct across the field?
After check of textbooks found that every 8-th textbook should be withdrawn. Together 74 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn?
- It is rectangular?
Size of two of the angles in a triangle are: α=60°, β=20°. Is it a right triangle?
How many times you can subtract the number 5 from the number 67?
The theater has in each row with 11 seats. Ticket to the first 8 rows is for 198 KČ. In next rows is for 84 KČ. The theater was completely sold out. Revenue was 34980 KČ. How many rows are in the theater?
Pediatrician this month of 21 working days takes 3 days holidays. What is the probability that on Monday will be at work?
I have 12 balls and my friend has 18. About how many has my friend more balls?
A man bought a pig for € 55 then sold it for € 65. Then again bought for € 75 and sold it for € 85. How many € earned?
- I think number
I think number.When I add 544 to it and subtract 194, I get a number that is 45 greater than 1207. What number I thinking?
Table of chocolate is divided into squares on its surface. Lengthwise has 15 squares and widthwise 7 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 hens will eat spilled grain from 6AM to 16 PM. At 9 hour grandmother brought 5 hens from the neighbors. At what time was grain out?
Nicol mistake when calculate in school. Instead of add number 34 subtract it. What is the difference between the result and the right result?
- Efficiency of rail
With subsidies are business easy. Calculate how much must cost rail ticket (x) in today's ticket price € 13 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.
- Unknown x
If we add to unknown number 72, then divide by 2 and then subtract 29, we get back an unknown number. What is this unknown number?
Theatrical performance started at 17:25 and ended at 18:25. How many minutes long?