It indicates that you should subtract the smaller number from the larger one to determine the number. For example:
IV = 4 (I less than V, 1 less than 5)
IX = 9 (I less than X, 1 less than 10)
XL = 40 (X less than L, 10 less than 50)
that it's large
Subtraction
Placing a smaller value before a larger value in a number or numeral indicates that the smaller value should be subtracted from the larger value. This is commonly seen in Roman numerals, where symbols like "IV" represent 4 (5-1) and "IX" represents 9 (10-1).
40 when a smaller number comes before a larger number in roman numerals it is subtracted from the larger number X meaning ten L meaning 50 X before L 50-10=40
540 is already in numerals. Do you mean in 'Roman Numerals'. If so. 540 = DXL'. NB 'D' = 500 'L' = 50 'X' = 10 In Roman numerals the largest value to the left. If there is a smaller value to the left of a larger value, then it means deduct the smaller from the larger. Hence XL = 40 ; '50 less 10.
LXIX is 69 L = 50 X = 10 I = 1 In Roman numerals, the largest value goes to the left, followed by the lesser values to the right. Except when a smaller value is placed before a larger value it means subtract the smaller value from the larger value to the right. Hence LXIX = 50 + 10 + ( 10 - 1) = 50 + 10 + 9 = 69 .
Subtraction
Placing a smaller value before a larger value in a number or numeral indicates that the smaller value should be subtracted from the larger value. This is commonly seen in Roman numerals, where symbols like "IV" represent 4 (5-1) and "IX" represents 9 (10-1).
Subtraction
40 when a smaller number comes before a larger number in roman numerals it is subtracted from the larger number X meaning ten L meaning 50 X before L 50-10=40
MCMLXV M=1000 C=100 L=50 X=10 V=5 When a smaller "letter" is before a larger "letter" you subtract the value of the smaller from the larger: CM=1000-100=900 When the larger is before the smaller, you simply add each value.
540 is already in numerals. Do you mean in 'Roman Numerals'. If so. 540 = DXL'. NB 'D' = 500 'L' = 50 'X' = 10 In Roman numerals the largest value to the left. If there is a smaller value to the left of a larger value, then it means deduct the smaller from the larger. Hence XL = 40 ; '50 less 10.
By placing a smaller pipe insider the larger one and weld /braze the gap
Decagram if going from larger unit to smaller unit, and decigram if from smaller to larger.
LXIX is 69 L = 50 X = 10 I = 1 In Roman numerals, the largest value goes to the left, followed by the lesser values to the right. Except when a smaller value is placed before a larger value it means subtract the smaller value from the larger value to the right. Hence LXIX = 50 + 10 + ( 10 - 1) = 50 + 10 + 9 = 69 .
To subtract in Roman numerals, you simply place a smaller number in front of a larger one. You subtract the value of the smaller number from the larger one. For example, to express 4 in Roman numerals, you write IV (5-1). Similarly, to express 9, you write IX (10-1).
6: In Roman numerals, I=1, V=5, X=10, L=50, C=100, D=500, and M=1000. When a smaller number is after of a larger number, you add the two together. (If it's a smaller number before a larger, you subtract.) Therefore, VI=1+5=6.
IX because I is one and X is ten and when a smaller number comes before a larger number it means subtract from, in which case it is X - I or 10 - 1 which results in 9.IXIX