Here is one example of when you would use the friendly number strategy to subtract.
42 - 18
We will turn the 18 into a friendly number, which is going to be 20.
(42 + 2) - (18 + 3)
44 - 20
Now it is easier to subtract 44 - 20 than it is 42 -18. With 42 - 18 we would have to barrow whereas with 44 -20 we do not have to barrow and we can do it in our head easier and makes it faster.
Answer:
ummm u did not add the statements to the question
Step-by-step explanation:
but a polygon ABCD might not be a rectangle if:
- opposite sides of polygon ABCD are not of equal lengths
- all angles of the polygon may not be right angles (90°)
- opposite sides may not be parallel
The y intercept is -4 and the 2/3x is the slope
Answer:
The last one or b(32-16)
Step-by-step explanation:
Because when simplified it is b times 32 minus 16b
or
32b-16b