0
Any number between 1 and 9 plus 10 is just that number but with a 1 in in front, as if you dropped the zero from 10 and replaced it with the number. (Ex: 10 + 6 = 16) With numbers besides 1-10, like 7 + 13, you can think, "7 + 3 = 10, and 13 - 3 = 10. So if i took the 3 from 13 and give it to the 7, I'd have 10 + 10 = 20!" Or:
7 + 13
-3
10
7 + 10 = 17
+3
20
If this doesn't make sense, try really thinking about my answer. I hope helped! If you have any questions about this just ask and I'll answer.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How do you get the resultant of two or more vectors?
You can add the vectors graphically - join them head-to-tail. Or you can solve them algebraically: you can separate them into components, and add the components.
How do you find the sums using mental computation?
Basically, it means to add the numbers in your head.
Explain how you could add 678 plus 303 using mental math?
Well, what I do is i add 678 plus 300 in my head (this would equal 978) then add 3 (this would equal 981)
When you estimate why do you round to the closest number then you multiply?
The general idea is to quickly get an approximate answer - in a way that you can do much of the calculations, or all of them, in your head.
How do you quickly find all the multiples of a number?
Finding all the multiples of a number won't happen quickly. It's not even possible. To get started, add a number to itself. Keep adding that number to the total until you reach infinity.
Does the head louse spread quickly?
Yes it does
Can salt rust metal?
yes, very quickly i will add
How can you add vectors?
we can add vectors by head to tail rule.THe head of first vector to the tell of second vector.And for the resultant vector we can add the tail of first vector to the head of second vector. we can add more than three vectors to give a resultant is equal to zero by joining head to tail rule as to form polygan .
How can we Estimating Products?
By rounding the factors, then quickly multiplying them in your head.
How quickly should you add fish to a freshwater tank?
10 minutes
If you get shot in the head will it kill you quickly?
No. this would not kill you quickly. the only thing that could kill you is the loss of blood. It is common for someone to die with a shot in the head but the chances are 2/5 that you will survive
My hamster's head looks squashed What shall I Do?
Take it to the vets quickly!
Does the atmosphere heat more quickly than the sea or the land?
Yes. The air will head up more quickly than water.
Purpose of bombing?
To destroy things easliy and quickly without head-to-head conflict. It is very effective and can devestate a city.
What would cause a 1998 2.2 chevy cavalier to quickly overheat?
Blown Head Gasket or Bad Cylinder Head
What does add mentlly mean?
to do it in your head its mental math.
What if a boy turns his head quickly when he recognized your voice?
he likes you, or you have an annoying voice.
