Subtraction on Number Line

Q. If we are at -2 on the number line, in which direction should we move to reach -8?

1. left
2. right
3. insufficient data

Q. Choose the correct representation of the expression $4-3$ on number line.

1. 
2. 
3. 
4. None of the above

Q. A path begins at 5/3 ft below ground level. There is a trap 8/3 ft above the point. What is your elevation from the gound when you reach the trap?

1. 3 feet
2. 5 feet
3. 1 foot
4. 2 feet

Q. You have 10/4 kg of sugar. If you use 7/4 kg of sugar, what amount of sugar will be left?

1. 0.75 kg
2. 0.50 kg
3. 1.25 kg
4. 0.25 kg

Q. Madam Curie collects equal quantities (each 1 gram) of radio active elements, radium, and polonium in two containers. She uses 1/2 part of radium and 1/3 part of polonium in an experiment. What quantity of radium and polonium is left out (in grams) is represented on the given number line?

1. Radium : $\frac{1}{2}$ grams, Polonium: $\frac{2}{3}$ grams.
2. Radium: $\frac{2}{3}$ grams, Polonium: $\frac{1}{3}$ grams.
3. Radium : $\frac{3}{2}$ grams, Polonium: $\frac{2}{3}$ grams.
4. Radium : $\frac{5}{2}$ grams, Polonium: $\frac{3}{2}$ grams.

Q. If we are at 4 on the number line, we make 4 hops to the left, at which point do we arrive?

Q. Starting at 1 on the number line, we will arrive at -8 after two jumps. Choose the appropriate expression for the situation.

1. $1-3-8$
2. $1-4-5$
3. $-1-4-5$
4. $1+3+8$

Q.

Subtract the following:

$H\mathrm{T}\mathrm{O}473-361$

Q. The lab accomodates a maximum of 16 people. To perform an experiment, 16 researchers entered the lab. How many seats are left for accomodation?

1. 16
2. 32
3. 0
4. 6