Adding Integers
Add the integers
6 + (-4) =
2
Subtract the integers
7 - 10 =
-3
Multiply the integers
(-3) x 2 =
-6
Divide the integers
(-15) / 3 =
-5
Suppose your elevator was initially on the 12th floor, it goes down 11 floors and then goes up 5 floors. What floor are you on now? Write an addition equation to represent this and solve.
(+12) + (-11) + (+5) = +6
You are on the 6th floor.
Add the integers
(-3) + 2 =
-1
Subtract the integers
-5 - 7 =
-12
Multiply the integers
3 x (-6) =
-18
Divide the integers
(-28) / 7 =
-4
Mr Peterman makes 4 withdrawls of $10 each. How much has he withdrawn in total? Write an equation to represent the withdrawls and solve.
4 x (-10) = -40
He has withdrawn $-40 in total.
Add the integers
(-5) + (-6) =
-11
Subtract the integers
6 -(-4) =
10
Multiply the integers
(-7) x (-7) =
49
Divide the integers
(-48) / (-6) =
8
|-44|
44
Add the integers
(-12) + (-4) + (-3) =
-19
Subtract the integers
(-9) - 4 =
-13
Multiply the integers
(-7) x (-6) =
42
Divide the integers
(-84) / (-7) =
12
|65|
Add the integers
(-20) + 3 - 1 =
-18
Subtract the integers
(-4) - (-6) =
2
Multiply the integers
(-12) x (-14) =
168
Divide the integers
(-72) / 6 =
-12
During a 12 hour period, the temperature dropped 48°C. How many degrees did the temperature drop each hour? Write the equation to represent this problem and solve.
48 ÷ 12 = 2
The temperature dropped 2°C each hour.