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How do you find the squareroot of a number?
Ignore the last two digits of the number called out by the spectator and choose the memorised square which is just lower (or equal) to the remaining number. The corresponding square root is the first digit. of your answer Now consider the last digit of the number called out by the spectator. If this is 0 or 5, then you immediately know that the last digit of your answer is also 0 or 5. In all other cases, the last digit of the number called out will indicate two possible values for the last digit of the square root. For example, if the last digit is 9, then the square root may end in either 3 or 7.
Why is 90 divisible by 10?
90 is divisible by 10 because it has a 0 as its end digit. Any number with a zero as the end digit gives an integer result when dividing by 10.
What must a four digit number end in to be divisible by 400?
All of the four-digit multiples of 400 end in 00.
Describe the ones digit of any prime number greater than 10?
Any prime number greater than 10 is an odd number but cannot end in 5 as this makes it divisible by 5. Therefore the ones digit of any prime number greater than 10 must be 1, 3, 7 or 9.
What is the value of the underlined digit in the number 410327?
There is no underlined digit. If there was it would be that digit multiplied by 10n-1 where n is the number of the digit as counted from the right hand end, starting at 1.
What will be the unit digit of the square root of 3844?
As 3844 ends in 4, its square root (if a whole number) will end in 2 or 8. √3844 = 62 so the unit digit is 2.
How do you find the squareroot of a number?
Ignore the last two digits of the number called out by the spectator and choose the memorised square which is just lower (or equal) to the remaining number. The corresponding square root is the first digit. of your answer Now consider the last digit of the number called out by the spectator. If this is 0 or 5, then you immediately know that the last digit of your answer is also 0 or 5. In all other cases, the last digit of the number called out will indicate two possible values for the last digit of the square root. For example, if the last digit is 9, then the square root may end in either 3 or 7.
Why is 90 divisible by 10?
90 is divisible by 10 because it has a 0 as its end digit. Any number with a zero as the end digit gives an integer result when dividing by 10.
What digit do you put at the end of a number when you multiply it by ten?
Any integra number timed bt ten would be exacly adding a zero (0) to the end of the number. ^^
What is single end digits?
a single end digit is a digit at the end of a number. e.g. 4735 the SED is 5
What three digit number is divisible by 10?
Any whole number between 10 and 99, with a zero tacked on to the end of it, is.
The square of a wole number is 2809 what is the number?
Work it out with a few clues. Only a 3 can be the last digit of number whose square has a 9 at the end. There are 4 digits in the square, so the root is greater than 31, and less than 100. The square of 5 = 25, so the square of 50 = 2500
Will you end up with a square number when you add together any square number?
Not every time. For example 32+42=25 (52) but 22+32=13 (not a square number)
What must a four digit number end in to be divisible by 400?
All of the four-digit multiples of 400 end in 00.
If the number is 12.04 what is the front end digit?
1
How do you get 242 out of a 3-digit number?
Start Select the three digit number two hundred forty two. End.
Describe the ones digit of any prime number greater than 10?
Any prime number greater than 10 is an odd number but cannot end in 5 as this makes it divisible by 5. Therefore the ones digit of any prime number greater than 10 must be 1, 3, 7 or 9.
