what is the number 10 more than 23?
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Once students develop basic number sense, they can easily equate counting by 10s with basic math problems, such as figuring out that 10 less than 70 is 60 and 10 more than 23 is 33.
1109952
The number of 5-digit combinations is 10 5=100,000. So, one more than 99,999.
434189
10 10 = 100 two digit combinations. 10 10 10 = 1000 three digit combinations. There are 60 of them. Using the same argument as above there are 60 60 = 3600 two "digit" combinations and 60 60 60 = 216000 three "digit" combinations.
1283597
Now, there are 105 ways in which the digits 0-9 can be chosen for the five places of a five digit number. Out of these, 104 start with zero (once we start with 0, there are only 4 slots to fill, where we have 10 choices each).
3761
9,19,29,39,49,59,69,79,89,90,91,92,93,94,95,96,97,98,99. You have not mentioned if only natural numbers must be considered while counting the number of 9s that appear between 1 and 100. If only natural numbers are considered while counting, then 9 appears 20 times.
892702
For 23 to be an integer, 23 has to be a whole number. Furthermore, for 23 to be an integer, you should be able to write 23 without a fractional or decimal component. 23 is a whole number that can be written without a fractional component, thus 23 is an integer. The answer to the question: "Is 23 an integer?" is YES.
344032
eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty.
1096543
The trick is to realize that a number can not start with a zero! Now, there are 105 ways in which the digits 0-9 can be chosen for the five places of a five digit number.
530016
7,17,27,37,47,57,67,70,71,72,73,74,75,76,77,78,79,87,97. the answer is 20!!!!!!! (77) is counted twice. Count!
949828
c) The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
392075
You want to know how many ways different sets of five numbers (you say digits, but since they go up to 20 I think you mean numbers) out of 20. The answer is called “20 choose 5” and it equals 20! / [5!*( 20 = 5)!], or written out 20*19*18*17*16/(5*4*3*2*1). It's 15,504.
875081
၀ ၁ ၂ ၃ ၄ ၅ ၆ ၇ ၈ ၉ 11th Century. Maya numerals. 20.
251251
10, 20, 30, 40, 50, 60, 70, 80, 90, and 100. Hence, there are 11 zeroes from 1 to 100.
256071
The multiples of 10. Answer : 10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490, Related Links : What are the factors of 10?
732521
1 more than 5 is 6. The sum of two numbers is 20. The larger number is four less than twice the smaller number. What rae the two numbers?
1088743
There are 18 whole numbers from 1 to 100 that contain the digit 2 exactly once. They are 2, 12, 20, 21, 23, 24, 25, 26, 27, 28, 29, 32, 42, 52, 62, 72, 82, and 92.
1179355
As others have pointed out, you generally write out the numbers one through ten, and use numerals for larger numbers. So in most cases, I'd write “20”. An exception would be if the number is the first word in a sentence, e.g. “Twenty men came over the hill.”