Addition and Subtraction
- 3 + - 2
- 5
- 4 x -5 =
20
2 x 5 - 7 =
3
In the morning the temperature was -7 degrees celsius, by the afternoon the temperature was 16 degrees celsius. What was the difference in temperature?
23 degrees celsius
Write a comparative number sentence using < or > or =
-76 and -94
- 94 < -76
- 76 > - 94
- 10 + 12 =
2
- 10 x ___ = -90
9
- 3 - ( 6 + -9) =
0
Chloe had $35 in her bank account. She brought some new makeup which cost her $57. Does Chloe still have money in her bank account or does she owe the bank money? How much does she have or owe?
She owes $22
Order the following from smallest to largest...
- 176, 54, -98, 32, 1, -4 , 0
- 176, -98, -4, 0, 1, 32, 54
- 89 - - 21 =
- 68
- 34 x ___ = 102
- 3
( -5 x 2) + 22 =
- 6
Joe dropped a coin off the top of a cliff. The cliff was 27m above sea level, the coin landed 16m below sea level. How far did the coin fall?
43m
Write a comparative number sentence using <, > , =
- 32, 8 and - 16
- 32 < -16 < 8
8 > - 16 > -32
- 513 + - 16 =
- 529
- 68 x ____ = -544
8
33 - 15 x 2 =
- 3
A submarine was situated 800m below sea level. If it ascends 250m, what is its new position?
550m
What is an integer?
any number that is positive or negative and includes 0
178 + - 498 =
- 320
39 x _____ = - 585
- 15
24 + ( 15/ 3) - 56 =
- 35
Metal mercury at room temperature is a liquid. Its melting point is -39°C. The freezing point of alcohol is-114°C. How much warmer is the melting point of mercury than the freezing point of alcohol?
153°C
The Punic Wars began in 264 B.C. and ended in 146 B.C. How long did the Punic Wars last?
118 years