32
32 is the smallest two-digit number that can be multiplied by itself to give a four-digit number. (32x32)=1024
9999/88 give 55 remainder reduce this 55 from dividend. you will obtain a largest four digit no divisible by 88. ans is 9944
Only three significant digits are correct, because 5.0 contains no digit for hundredths, and such a digit would be required to give four significant digits in the answer. Because 7 + 5 equals exactly 12, a third significant digit is gained for the answer. Note in contrast that the sum of 7.68 and 0.50 would properly contain four significant digits.
1000
32
32 is the smallest two-digit number that can be multiplied by itself to give a four-digit number. (32x32)=1024
20,3,10 or 12,5,10 there are many combinations of numbers
9999 + 1 * * * * * That is so wrong! There are 10*9*8*7/(4*3*2*1) = 210 combinations of 4 numbers from the set of ten 1-digit numbers, 0 1, 2, ... 9 When considering combinations, 1234 is the same as 2314 or 4123 etc. Actually... 4 numbers to be arranged with ten different possibilities each will give a total of 10^4 combinations, or 10,000.
9999/88 give 55 remainder reduce this 55 from dividend. you will obtain a largest four digit no divisible by 88. ans is 9944
5 is.
Only three significant digits are correct, because 5.0 contains no digit for hundredths, and such a digit would be required to give four significant digits in the answer. Because 7 + 5 equals exactly 12, a third significant digit is gained for the answer. Note in contrast that the sum of 7.68 and 0.50 would properly contain four significant digits.
1000
1
The answer is 4. You get the answer by trying the example of the largest two digit number, 99. 99 x 99 = 9801. This has four digits, so you can't get more digits than this by multiplying two two digit numbers. * * * * * True, but you CAN have fewer: 10*10 = 100, which is only three digits! 1490 of the 8100 2 digit x 2 digit multiples have products of 3 digits, the rest have 4 digit products.
three plus four is tree times twenty-four.
184 249 286 or anything 100-299