Examples for 6th grade (the sixth graders) - page 41
The diameter of a circular plot is 14 dm. Find the circumference and area.
- Bicycle wheel
After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
- Rectangle 39
Find the perimeter and area of the rectangular with vertices (-1, 4), (0,4), (0, -1), and (-4, 4)
Honza had three cages (black, silver, gold) and three animals (guinea pig, rat and puppy). There was one animal in each cage. The golden cage stood to the left of the black cage. The silver cage stood on the right of the guinea pig cage. The rat was in the
- Ten pupils
10 pupils went to the store. 6 pupils bought lollipops and 9 pupils bought chewing gum. How many pupils have bought both lollipops and chewing gums (if everyone bought something)?
For 7 hours study, she scored a 75 so if she made 93 how many hours would she need to study?
Alley measured a meters. At the beginning and end are planted poplar. How many we must plant poplars to get the distance between the poplars 15 meters?
- Money split
Anton and Ferko got 2,500 euros together. The amount was split in 1:4 ratio. How much did each get?
thermometer showed -12 degrees Celsius at the morning then the temperature rises by 4 degrees and later again increased by 2 degrees at the evening has fallen by 5 degrees and then fall 3 degrees. What end temperature does the thermometer show?
If it takes 20 minutes to run a batch of 100 pills how many minutes would it take to run a batch of 50 pills
- 3 cats
3 cats eat 3 mice in 3 days. How many mice will eat 10 cats in 10 days?
Reduce the numbers: 50 in a 1:2 ratio 111 at a ratio of 2:3 70 at 10:50 560 at a ratio of 3:8
Solve equation: 4(a-3)=3(2a-5)
- Thunder and lightning
There was a glimpse of the sky and we hear a thunder in 4.5 seconds. The light spreads at 300,000 kilometers per second, so we can assume the flash instantly without delay. However, the speed of the sound is much smaller in the air one third of a kilomete
- If-then equation
If 5x - 17 = -x + 7, then x =
- Family 8
Father is 38 years old, daughter 12, son 14. How many years will father have as many years as his children together?
What is LCD of the equation of ? ? And what is x?
- Write decimals
Write in the decimal system the short and advanced form of these numbers: a) four thousand seventy-nine b) five hundred and one thousand six hundred and ten c) nine million twenty-six
- Photo enlarge
Mark wants to enlarge a 4-inch by 6-inch photo so that it has a height of 15inches. Use a ratio table to determine the new width of the photo.
- Two cuboids
Find the volume of cuboidal box whose one edge is: a) 1.4m and b) 2.1dm