Positive
-2 * -2 =
+4
-4 x 9 =
- 36
(-2 + 4) + 5 x 2 =
= -2 +10
= 8
It will be – 12º tonight. The weatherman predicts it will be 25º warmer by noon tomorrow. What will the temperature be by noon tomorrow?
13
2(4+4) =
16
-3 (4 + 5) =
= -12 + -15
= -27
-17 x 21 + 56 - 21
= -357 + 35
=-322
Josie has $47 left in her checking account. If she writes a check for $55, what will Josie’s balance be?
-8
5 (5 x 2) =
= 25 x 10
= 250
7 (-52 + 30)
= -364 + 210
= -154
= -54+ (-51 x 35)
= -54 + -1785
= -1839
Find the difference in height between the top of a hill 973 feet high and a crack caused by an earthquake 79 feet below sea level.
894
25 x 10 =
250
-80 / 4 =
-20
9 x 4 (5 x -3) =
= 9 x 4 x -15
=-540
Steve has overdrawn his checking account by $27. His bank charged him $15 for an overdraft fee. Then he quickly deposited $100. What is his current balance?
58
- 15 x - 23 =
345
-3 (2 - -3) =
=- 6 - 9
= -15
56 + 724 / 4 - 5 =
= 56 + 181 - 5
= 232
In Detroit, the high temperatures in degrees Fahrenheit for five days in January were -12°, -8°, -3°, 6°, -15°. What was the average temperature for these five days?
-6.4