3.3 Subtract integers  (Page 4/6)

Evaluate each expression:

$m-3\text{when}$

1. ⓐ $m=1$
2. ⓑ $m=\mathrm{-4}$

Evaluate each expression:

$17-k\text{when}$

1. ⓐ $k=19$
2. ⓑ $k=\mathrm{-19}$

Evaluate each expression:

$\mathrm{-5}-b\text{when}$

1. ⓐ $b=14$
2. ⓑ $b=\mathrm{-14}$

Translate and simplify:

1. ⓐ the difference of $14$ and $\mathrm{-23}$
2. ⓑ subtract $21$ from $\mathrm{-17}$

Translate and simplify:

1. ⓐ the difference of $11$ and $\mathrm{-19}$
2. ⓑ subtract $18$ from $\mathrm{-11}$

The temperature in Anchorage, Alaska one morning was $\text{15 degrees Fahrenheit.}$ By mid-afternoon the temperature had dropped to $\mathrm{30\; degrees}$ below zero. What was the difference between the morning and afternoon temperatures?

The temperature in Denver was $\mathrm{-6}$ degrees Fahrenheit at lunchtime. By sunset the temperature had dropped to $\text{−15 degree Fahrenheit.}$ What was the difference between the lunchtime and sunset temperatures?