It is: 81
The largest 3-digit number - not itself a perfect square - is 999. Calculate its square root, round the answer down, then square the answer again.
To square a number multiply it by itself (or use a calculator's square button).For square roots they can be worked out:1) using a calculator's square root button;2) take the log of the number (using a calculator or tables), divide it by two and then find the antilog (to the same base, using a calculator or tables) of this result;3) a kind of long "division":3.1) write the number in pairs of digits starting either side of the decimal point; if there is an odd number of digits before the decimal point, the first "pair" will be a single digit; if there is an odd number of digits after the decimal point, add a zero to make the last "pair" two digits, eg 123.456 becomes 1 23 . 45 60;3.2) write in a "bus stop" division over the number (to make it the "dividend"), but extend the down-stroke down a few lines and put a decimal point in the answer over the decimal point in the number;3.3) find the smallest number that when squared is not greater than the first pair of digits3.4) write this number to the left of the down-stroke (as the divisor in a division) and over the first pair of digits3.5) write the square of this number under the first pair of digits and subtract3.6) bring down the next pair of digits from the "dividend"3.7) double the answer so far (ignore the decimal point) and write to the left of the down-stroke next to the number formed in step 3.6, leaving room to add a units digit3.8) find the digit than when added as the units digit to the "divisor" just written (in step 3.7) and the whole "divisor" is multiplied by this digit is not greater than the number formed in step 3.6;3.9) write this digit as the units digit and over the pair of digits brought down3.10) multiply the whole divisor by this digit (its units digit) and subtract from the number formed in step 3.6;3.11) repeat from step 3.6 until there are no more pairs to bring down and the result of the last subtraction is 0, or until the required accuracy is found.eg √2:_______1_._4__1__4_2______-------------------____1_| 2 . 00 00 00 00______| 1______|---___24_| 1__00______| ___96______|--------__281_|_____4 00______|_____2 81______|_____------_2824_|_____1 19 00______|_____1 12 96______|_____----------28282_|_______6 04 00______|_______5 65 64______|_______---------______|________ 38 36etc→ √2 ≈ 1.414
The list is so easy to construct that you can even do it yourself. Here's how: -- Begin with the number 1,000. -- Count from 1,000 to 9,999. -- Write down every number you say. There's your list.
9116
The number is 949.
The largest 3-digit number - not itself a perfect square - is 999. Calculate its square root, round the answer down, then square the answer again.
Press down the 2 and 3 buttons until you get a 3 digit number. Then write it down. Then press the AM FM button and you will get another 3 digit number. Write that one down and then post both of them (all 6 digits) here.
-- Write down the number of kwh -- Write down the number of square feet -- Divide the first number by the second number. -- The answer is mathematically correct, but doesn't appear to have any physical significance in the real world.
The digit 3 will be written 20 times.
To square a number multiply it by itself (or use a calculator's square button).For square roots they can be worked out:1) using a calculator's square root button;2) take the log of the number (using a calculator or tables), divide it by two and then find the antilog (to the same base, using a calculator or tables) of this result;3) a kind of long "division":3.1) write the number in pairs of digits starting either side of the decimal point; if there is an odd number of digits before the decimal point, the first "pair" will be a single digit; if there is an odd number of digits after the decimal point, add a zero to make the last "pair" two digits, eg 123.456 becomes 1 23 . 45 60;3.2) write in a "bus stop" division over the number (to make it the "dividend"), but extend the down-stroke down a few lines and put a decimal point in the answer over the decimal point in the number;3.3) find the smallest number that when squared is not greater than the first pair of digits3.4) write this number to the left of the down-stroke (as the divisor in a division) and over the first pair of digits3.5) write the square of this number under the first pair of digits and subtract3.6) bring down the next pair of digits from the "dividend"3.7) double the answer so far (ignore the decimal point) and write to the left of the down-stroke next to the number formed in step 3.6, leaving room to add a units digit3.8) find the digit than when added as the units digit to the "divisor" just written (in step 3.7) and the whole "divisor" is multiplied by this digit is not greater than the number formed in step 3.6;3.9) write this digit as the units digit and over the pair of digits brought down3.10) multiply the whole divisor by this digit (its units digit) and subtract from the number formed in step 3.6;3.11) repeat from step 3.6 until there are no more pairs to bring down and the result of the last subtraction is 0, or until the required accuracy is found.eg √2:_______1_._4__1__4_2______-------------------____1_| 2 . 00 00 00 00______| 1______|---___24_| 1__00______| ___96______|--------__281_|_____4 00______|_____2 81______|_____------_2824_|_____1 19 00______|_____1 12 96______|_____----------28282_|_______6 04 00______|_______5 65 64______|_______---------______|________ 38 36etc→ √2 ≈ 1.414
That's one way to do it. The problem with that method is that you're usually wrong. A much more reliable method is to figure it out with arithmetic. All you have to do is . . . -- Write the number down. -- Write it down again. -- Multiply the two numbers you see written down. If you multiply correctly, then the answer you get this way is always the correct square of the number.
The digit immediately to the right of your target.
Ask your instructor if you can write down your 10 digit code.
120 times.
The digit immediately to the right of the one you are rounding to.
Write down the 17 digit VIN number on the head tube. Then enter it at the link below for motoverse.com
1000