I will lay out the answers according to the days you have on your picture.
Monday:
<em>1. -12 x -5 </em>
A negative multiplied by a negative will equal a positive answer. So:
<em>12x5= 60</em>.
To do this without a calculator, first do
<em>5x10= 50, </em>then
<em>5x2=10. </em>
<em>50+10= 60.</em>
<em>2. True or False: 27= 3 x 3^3</em>
First find out what 3 cubed is. That means 3x3x3. Since 3x3=9, and 9x3= 27, the 3 cubed is 27.
But you still need to multiply by 3 yet! 27x3=81.
So this question is false.
<em>3. True or False: (-) / (+) = (-)</em>
A negative divided by a positive is indeed negative. So this is true.
Tuesday:
<em>1. 18+ (-16)</em>
Like before, a negative and positive equal a negatvie. So the question is really asking: 18-16 = 2.
<em>2. 18/ -3</em>
Again, positive divided by a negative (or the other way around) will equal a negative. So 18/3=6, and add the negative sign, so the answer is -6.
<em>3. (-5)(6)(-7)</em>
When a negative is multiplied by a positive, the answer is negative. But, if the negative is multiplied by another negative, the answer is positive. So the answer here is positive.
(5)(6)(7)
=30 x 7
=210
Monday #2
<em>1. (-)(-)(-)</em>
When two negatives are multiplied, the answer is a positive. But when multiplied by another negative, the answer becomes negative once again.
<em>2. -(4^2)= -16 </em>
This answer is true. 4 squared is 16, and becomes negative because of the negative sign in front of the 4 squared.
<em>3. -50+20</em>
This is almost like asking 50-20 = 30. But because we are going towards 0 from the negative range, the answer will be negative.
Tuesday #2
<em>1. If a=-8, then 4a...</em>
4(-8)
=-32
<em>2. Question unclear...</em>
<em>3. (-)+(-)</em>
<em>= positive</em>
Wednesday
<em>1. -5+3-3</em>
+3-3=0
So the answer is just -5
<em>2. absolute value of -8/4</em>
Just take off the negative sign. So just 8/4.
<em>3. -12+(-5)</em>
= -12-5
=-17
