100 students sat a physics examination. The time they spent revising is shown in the table. What is the modal class?
5<h≤10
A teacher asks the students in his class how they travel to school. The table shows the results. Write down the method of travel that is the mode.
Bus
The Elves' Workshop: The elves built 7 Christmas toys in a day. The times taken to build each toy were 5, 8, 5, 10, 5, 12, and 6 minutes. Find the median time taken to build the toys.
6 mins
The Elves' Workshop: The elves built 7 Christmas toys in a day. The times taken to build each toy were 5, 8, 5, 10, 5, 12, and 6 minutes. Identify the mode. Calculate the range.
Mode = 5mins, Range = 7 mins
A group of children took rides on Santa's sleigh. Their ride times in minutes were 10, 12, 15, 20, 12, and 18. Find the median.
13.5 min
Santa buys reindeer feed costing £4.78 per kg. Estimate the total cost of 4.3 kg by rounding. (Santa has 9 reindeer)
£20 - 22 (accurate is £20.55)
An elf counted 249 snowflakes in one area and 357 snowflakes in another. Estimate the total by rounding both numbers to the nearest hundred.
200+400= 600
A recipe for a holiday cake requires: 1/4 kg flour, 1/2 kg sugar, and 3/8 kg butter. Add the amounts to find the total weight of the ingredients.
9/8 kg or 1.125kg
Santa baked 20 gingerbread cookies. If he gives 3/4 of the cookies to the elves, how many cookies do the elves receive?
15 cookies
Santa needs 153 presents for one village and 278 presents for another. Round the totals to the nearest hundred and estimate the total number of presents.
200+300 = 500
An elf measures shoe sizes: 6.58, 7.41, and 8.96. Round each to 1 decimal place.
6.6, 7.4 and 9
A candy cane costs £2.83. Estimate the total for 3 candy canes by rounding to the nearest whole number.
£9
A reindeer flew 47.6 km, 38.9 km, and 52.4 km in three trips. Round each distance to the nearest 10 km and find the estimated total.
140 km
Santa's sleigh bells ring every 8 minutes. If Santa starts at 2:00 PM, list the next 5 multiples of 8.
2:08, 2:16, 2:24, 2:32, 2:40
What are the prime factors of 30?
2,3,5
A string of red lights blinks every 4 seconds. A string of blue lights blinks every 6 seconds. If they start blinking at the same time how many seconds after they will blink at the same time again?
12 seconds
