What is the first number that comes to your head?

(For instance, if your first number is 2,357, your second number might ... add all the numbers with a calculator faster than you can in your head.

Calculating things in your head can be a difficult task. If you can't ... .. One of the first things to do is to look if the numbers are near anything easy to work out. In this example there is, ... .. The Binomial Theorem again comes to our help. Here we ...

This description prompted many of you to come forward with your own stories. For some, this was the first time they had come across the ...

You may wonder where head lice originated, and why they affect human beings. ... Their source of food is human blood, which they get from your scalp. Head ... that one of the types of lice, a “worldwide” species, existed first.

If so, I thought at first, that's definitely a downer. ... . the quiet voices in the backs of our heads telling us about the insight. ... task at first, you will find that other tasks will come a lot easier through your increased brain activity then. ... .. If the number 4000 daunts you, then you will never be very cr...

Winter has come to the Northern part of the world, and people are ... A runny nose is a sure symptom of a cold, but also allergies can turn your nose into a leaking faucet. ... “As a part of this process a number of signal substances are ... frozen onto the face of cross-country skier who's first across the goal lin...

When it comes to head lice, how are we supposed to behave with each other? ... If you learn that your child has lice, you need to first take a deep breath, ... . from the broad political stage to the numbers on your scale, we'd like ...