There are 90333567 bells on Christmas trees. Can we pack them into bags of 9? (no calculator)

Santa's workshop doubles toy production every day. On Day 1, they make 2 toys. How many toys are made on Day 5?

Santa buys reindeer feed costing £4.78 per kg. Estimate the total cost of 4.3 kg by rounding. (Santa has 9 reindeer)

The elves make 285 toys in one day. Check if this number is divisible by 3.

A Christmas tree is 6.478 meters tall. Round this to 2 decimal places.

An elf has 40 chocolates and 60 candies. What is the largest number of stockings he can fill with an equal number of both treats?

Rudolph flies every 8 days, and Dasher flies every 12 days. If both reindeer start flying on December 1st, on which date will they fly together again?

Santa stores 328 kg of reindeer feed in bags. Check if the total weight is divisible by 4.

An elf counted 249 snowflakes in one area and 357 snowflakes in another. Estimate the total by rounding both numbers to the nearest hundred.

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?

Santa gives out 8/12 of a bag of oats to reindeer. Simplify the fraction.

Santa fills stockings in groups of 6, while elves fill them in groups of 8. What is the smallest number of stockings that can be filled to satisfy both groups?