51
You subtract 54 from the mass number.
to find the range of numbers, you take the largest number and subtract the smaller number. 119-(-54)=119+54=173
To find the distance between 27 and -54 on a number line, you can subtract the smaller number from the larger number. The calculation is |27 - (-54)| = |27 + 54| = |81|. Therefore, the distance between 27 and -54 is 81 units.
6x9=54
54
121
45
It is: 126 plus 54 = 180
48
18
The number 18 goes into 54 exactly 3 times because when you divide 54 by 18, you get 3 (54 ÷ 18 = 3).
It is: 9*54 = 486