The easiest way to find the distance between any two numbers on a number line is the bigger number minus the smaller. Here 23 - (-7) = 23+7 = 30. Remember that minus a negative number is the same as plus that number.
89 x 7 = 623 The smallest number over 600 divisible by 89 is therefore 623.
Any reason why it wouldn't be 0.615?
-6
1 and 7.
-7
The absolute value of that number, like -7-0= |-7| or just 7.
The number would be 7.9 on a number line. What you can do to find this number is go to the spot on the number line that says 7 and 8. Cut the number line between 7 and 8 into 10 pieces. Then count to the ninth peice and this is 7.9
9
To visualise √7 on a number line you'd have to approximate it - √7 is in exact (surd) form as it is not a whole number. The approximation or decimal form of √7 is roughly 2.65. Or if you prefer, 2.6457513110645905905016157536393. So on a number line, place it between 2 and 3.
3 units
26 units
-4
The easiest way to find the distance between any two numbers on a number line is the bigger number minus the smaller. Here 23 - (-7) = 23+7 = 30. Remember that minus a negative number is the same as plus that number.
17
-4
89 x 7 = 623 The smallest number over 600 divisible by 89 is therefore 623.