English words from 1 to 99 are cardinal and ordinal

English words from 1 to 99 are cardinal and ordinal

Cardinal words: one (1) two (2) three (3) four (4) five (5) six (6) seven (7)
eight(8) nine(9) ten(10) eleven(11) twelve(12) thirteen(13)
fourteen(14) fifteen(15) sixteen(16) seventeen(17) eighteen(18)
nineteen(19) twenty(20) twenty-one(21) twenty-two(22) twenty-three(23) twenty-four(24) twenty-five(25) twenty-six(26) twenty-seven(27)
twenty-eight(28) twenty-nine(29) thirty(30)
Ordinal: first (1) second (2) third (3) fourth (4) fifth (5)
Sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth
Fourteenth fifth sixth
Seventeen, eighteen, ninetenth
Twenty first twenty second
Twenty third twenty fourth twenty fifth twenty sixth twenty seventh
Twenty eighth twenty ninth thirtieth

What are the multiples of 11 within 100? What are the multiples of 7 within 100?

The multiple of 11 is 11,22,33,44,55,66,77,88,99
The multiples of 7 are 7,14,21,28,35,42,49,56,63,70,77,84,91,98

A multiple of 9 within 50 is______ The multiple of 19 within 100 is______ ．

All the multiples of 9 within 50 are: 9, 18, 27, 36, 45. The multiples of 19 within 100 are: 19, 38, 57, 76, 95. So the answer is: 9, 18, 27, 36, 45.19, 38, 57, 76, 95

A multiple of 8 within 65 and a multiple of 19 within 100

8,16,24,32,40,48,56,64

Write all the multiples of 19 within 100, write all the multiples within 50, and write the numbers that are both the factors of 24 and the multiples of 8

All multiples of 19 within 100: 19, 38, 57, 76, 95
Write all multiples within 50: 19, 38
Write a factor of 24 and a multiple of 8: 8

Sum of multiples of 3 within 100

33(3+99)/2=33x51=1683

What is the sum of multiples of three within 100

This is an arithmetic sequence, the tolerance is 3, 3 times up to 99, a total of 33. According to the arithmetic sequence solution can be (3 + 99) * (99 / 3) / 2 = 1683. I don't know if the landlord has learned, have not learned a different understanding. 3 times from one time to N times, the highest is 33 times within 100

How many times of 3 and 5 are there within 100 (including 100)?

The least common multiple of 3 and 5 is 1515 * 6 & lt; 100, and 15 * 7100, so there are 6 multiples of 15 within 100, that is, there are 6 multiples of 3 and 5 within 100 (including 100)

Factors and multiples of 15 within 100

Factor of 15: 1.3,5,15
Multiple of 15: 15, 30, 45, 60, 75, 90

Find all the factors of 15 and all the multiples of 6 within 100
All factors of 15:
All multiples of 6 within 100:

All factors of 15: 1,3,5,15
All multiples of 6 within 100: 6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96